# tmux

## NAME



           **tmux** — terminal multiplexer
    


## SYNOPSIS



           **tmux**[**-2CDhlNuVv**] [**-c** _shell-command_] [**-f** _file_] [**-L** _socket-name_]
           [**-S** _socket-path_] [**-T** _features_] [_command_ [_flags_]]
    


## DESCRIPTION



           **tmux** is a terminal multiplexer: it enables a number of terminals
           to be created, accessed, and controlled from a single screen.
           **tmux** may be detached from a screen and continue running in the
           background, then later reattached.
    
           When **tmux** is started, it creates a new _session_ with a single
           _window_ and displays it on screen.  A status line at the bottom of
           the screen shows information on the current session and is used to
           enter interactive commands.
    
           A session is a single collection of _pseudo terminals_ under the
           management of **tmux**.  Each session has one or more windows linked
           to it.  A window occupies the entire screen and may be split into
           rectangular panes, each of which is a separate pseudo terminal
           (the _pty_(4) manual page documents the technical details of pseudo
           terminals).  Any number of **tmux** instances may connect to the same
           session, and any number of windows may be present in the same
           session.  Once all sessions are killed, **tmux** exits.
    
           Each session is persistent and will survive accidental
           disconnection (such as _ssh_(1) connection timeout) or intentional
           detaching (with the ‘C-b d’ key strokes).  **tmux** may be reattached
           using:
    
                 **$ tmux attach**
    
           In **tmux** , a session is displayed on screen by a _client_ and all
           sessions are managed by a single _server_.  The server and each
           client are separate processes which communicate through a socket
           in _/tmp_.
    
           The options are as follows:
    
           **-2** Force **tmux** to assume the terminal supports 256
                         colours.  This is equivalent to **-T** _256_.
    
           **-C** Start in control mode (see the “CONTROL MODE”
                         section).  Given twice (**-CC**) disables echo.
    
           **-c** _shell-command_
                         Execute _shell-command_ using the default shell.  If
                         necessary, the **tmux** server will be started to
                         retrieve the **default-shell** option.  This option is
                         for compatibility with _sh_(1) when **tmux** is used as a
                         login shell.
    
           **-D** Do not start the **tmux** server as a daemon.  This also
                         turns the **exit-empty** option off.  With **-D** , _command_
                         may not be specified.
    
           **-f** _file_       Specify an alternative configuration file.  By
                         default, **tmux** loads the system configuration file
                         from _@SYSCONFDIR@/tmux.conf_ , if present, then looks
                         for a user configuration file at _~/.tmux.conf_ or
                         _$XDG_CONFIG_HOME/tmux/tmux.conf_.
    
                         The configuration file is a set of **tmux** commands
                         which are executed in sequence when the server is
                         first started.  **tmux** loads configuration files once
                         when the server process has started.  The
                         **source-file** command may be used to load a file
                         later.
    
                         **tmux** shows any error messages from commands in
                         configuration files in the first session created,
                         and continues to process the rest of the
                         configuration file.
    
           **-h** Print usage information and exit.
    
           **-L** _socket-name_
                         **tmux** stores the server socket in a directory under
                         TMUX_TMPDIR or _/tmp_ if it is unset.  The default
                         socket is named _default_.  This option allows a
                         different socket name to be specified, allowing
                         several independent **tmux** servers to be run.  Unlike
                         **-S** a full path is not necessary: the sockets are all
                         created in a directory _tmux-UID_ under the directory
                         given by TMUX_TMPDIR or in _/tmp_.  The _tmux-UID_
                         directory is created by **tmux** and must not be world
                         readable, writable or executable.
    
                         If the socket is accidentally removed, the SIGUSR1
                         signal may be sent to the **tmux** server process to
                         recreate it (note that this will fail if any parent
                         directories are missing).
    
           **-l** Behave as a login shell.  This flag currently has no
                         effect and is for compatibility with other shells
                         when using tmux as a login shell.
    
           **-N** Do not start the server even if the command would
                         normally do so (for example **new-session** or
                         **start-server**).
    
           **-S** _socket-path_
                         Specify a full alternative path to the server
                         socket.  If **-S** is specified, the default socket
                         directory is not used and any **-L** flag is ignored.
    
           **-T** _features_   Set terminal features for the client.  This is a
                         comma-separated list of features.  See the
                         **terminal-features** option.
    
           **-u** Write UTF-8 output to the terminal even if the first
                         environment variable of LC_ALL, LC_CTYPE, or LANG
                         that is set does not contain "UTF-8" or "UTF8".
    
           **-V** Report the **tmux** version.
    
           **-v** Request verbose logging.  Log messages will be saved
                         into _tmux-client-PID.log_ and _tmux-server-PID.log_
                         files in the current directory, where _PID_ is the PID
                         of the server or client process.  If **-v** is specified
                         twice, an additional _tmux-out-PID.log_ file is
                         generated with a copy of everything **tmux** writes to
                         the terminal.
    
                         The SIGUSR2 signal may be sent to the **tmux** server
                         process to toggle logging between on (as if **-v** was
                         given) and off.
    
           _command_ [_flags_]
                         This specifies one of a set of commands used to
                         control **tmux** , as described in the following
                         sections.  If no commands are specified, the command
                         in **default-client-command** is assumed, which defaults
                         to **new-session**.
    


## DEFAULT KEY BINDINGS



           **tmux** may be controlled from an attached client by using a key
           combination of a prefix key, ‘C-b’ (Ctrl-b) by default, followed
           by a command key.
    
           The default command key bindings are:
    
                 C-b         Send the prefix key (C-b) through to the
                             application.
                 C-o         Rotate the panes in the current window forwards.
                 C-z         Suspend the **tmux** client.
                 !           Break the current pane out of the window.
                 "           Split the current pane into two, top and bottom.
                 #           List all paste buffers.
                 $           Rename the current session.
                 %           Split the current pane into two, left and right.
                 &           Kill the current window.
                 '           Prompt for a window index to select.
                 (           Switch the attached client to the previous
                             session.
                 )           Switch the attached client to the next session.
                 ,           Rename the current window.
                 -           Delete the most recently copied buffer of text.
                 .           Prompt for an index to move the current window.
                 0 to 9      Select windows 0 to 9.
                 :           Enter the **tmux** command prompt.
                 ;           Move to the previously active pane.
                 =           Choose which buffer to paste interactively from
                             a list.
                 ?           List all key bindings.
                 D           Choose a client to detach.
                 L           Switch the attached client back to the last
                             session.
                 [           Enter copy mode to copy text or view the
                             history.
                 ]           Paste the most recently copied buffer of text.
                 c           Create a new window.
                 d           Detach the current client.
                 f           Prompt to search for text in open windows.
                 i           Display some information about the current
                             window.
                 l           Move to the previously selected window.
                 m           Mark the current pane (see **select-pane -m**).
                 M           Clear the marked pane.
                 n           Change to the next window.
                 o           Select the next pane in the current window.
                 p           Change to the previous window.
                 q           Briefly display pane indexes.
                 r           Force redraw of the attached client.
                 s           Select a new session for the attached client
                             interactively.
                 t           Show the time.
                 w           Choose the current window interactively.
                 x           Kill the current pane.
                 z           Toggle zoom state of the current pane.
                 {           Swap the current pane with the previous pane.
                 }           Swap the current pane with the next pane.
                 ~           Show previous messages from **tmux** , if any.
                 Page Up     Enter copy mode and scroll one page up.
                 Up, Down
                 Left, Right
                             Change to the pane above, below, to the left, or
                             to the right of the current pane.
                 M-1 to M-7  Arrange panes in one of the seven preset
                             layouts: even-horizontal, even-vertical, main-
                             horizontal, main-horizontal-mirrored, main-
                             vertical, main-vertical-mirrored, or tiled.
                 Space       Arrange the current window in the next preset
                             layout.
                 M-n         Move to the next window with a bell or activity
                             marker.
                 M-o         Rotate the panes in the current window
                             backwards.
                 M-p         Move to the previous window with a bell or
                             activity marker.
                 C-Up, C-Down
                 C-Left, C-Right
                             Resize the current pane in steps of one cell.
                 M-Up, M-Down
                 M-Left, M-Right
                             Resize the current pane in steps of five cells.
    
           Key bindings may be changed with the **bind-key** and **unbind-key**
           commands.
    


## COMMAND PARSING AND EXECUTION



           **tmux** supports a large number of commands which can be used to
           control its behaviour.  Each command is named and can accept zero
           or more flags and arguments.  They may be bound to a key with the
           **bind-key** command or run from the shell prompt, a shell script, a
           configuration file or the command prompt.  For example, the same
           **set-option** command run from the shell prompt, from _~/.tmux.conf_
           and bound to a key may look like:
    
                 $ tmux set-option -g status-style bg=cyan
    
                 set-option -g status-style bg=cyan
    
                 bind-key C set-option -g status-style bg=cyan
    
           Here, the command name is ‘set-option’, ‘**-g** ’ is a flag and
           ‘status-style’ and ‘bg=cyan’ are arguments.
    
           **tmux** distinguishes between command parsing and execution.  In
           order to execute a command, **tmux** needs it to be split up into its
           name and arguments.  This is command parsing.  If a command is run
           from the shell, the shell parses it; from inside **tmux** or from a
           configuration file, **tmux** does.  Examples of when **tmux** parses
           commands are:
    
                 **-** in a configuration file;
    
                 **-** typed at the command prompt (see **command-prompt**);
    
                 **-** given to **bind-key** ;
    
                 **-** passed as arguments to **if-shell** or **confirm-before**.
    
           To execute commands, each client has a ‘command queue’.  A global
           command queue not attached to any client is used on startup for
           configuration files like _~/.tmux.conf_.  Parsed commands added to
           the queue are executed in order.  Some commands, like **if-shell** and
           **confirm-before** , parse their argument to create a new command which
           is inserted immediately after themselves.  This means that
           arguments can be parsed twice or more - once when the parent
           command (such as **if-shell**) is parsed and again when it parses and
           executes its command.  Commands like **if-shell** , **run-shell** and
           **display-panes** stop execution of subsequent commands on the queue
           until something happens - **if-shell** and **run-shell** until a shell
           command finishes and **display-panes** until a key is pressed.  For
           example, the following commands:
    
                 new-session; new-window
                 if-shell "true" "split-window"
                 kill-session
    
           Will execute **new-session** , **new-window** , **if-shell** , the shell command
           _true_(1), **split-window** and **kill-session** in that order.
    
           The “COMMANDS” section lists the **tmux** commands and their
           arguments.
    


## PARSING SYNTAX



           This section describes the syntax of commands parsed by **tmux** , for
           example in a configuration file or at the command prompt.  Note
           that when commands are entered into the shell, they are parsed by
           the shell - see for example _ksh_(1) or _csh_(1).
    
           Each command is terminated by a newline or a semicolon (;).
           Commands separated by semicolons together form a ‘command
           sequence’ - if a command in the sequence encounters an error, no
           subsequent commands are executed.
    
           It is recommended that a semicolon used as a command separator
           should be written as an individual token, for example from _sh_(1):
    
                 $ tmux neww \; splitw
    
           Or:
    
                 $ tmux neww ';' splitw
    
           Or from the tmux command prompt:
    
                 neww ; splitw
    
           However, a trailing semicolon is also interpreted as a command
           separator, for example in these _sh_(1) commands:
    
                 $ tmux neww\; splitw
    
           Or:
    
                 $ tmux 'neww;' splitw
    
           As in these examples, when running tmux from the shell extra care
           must be taken to properly quote semicolons:
    
                 1.   Semicolons that should be interpreted as a command
                      separator should be escaped according to the shell
                      conventions.  For _sh_(1) this typically means quoted
                      (such as ‘neww ';' splitw’) or escaped (such as ‘neww
                      \; splitw’).
    
                 2.   Individual semicolons or trailing semicolons that
                      should be interpreted as arguments should be escaped
                      twice: once according to the shell conventions and a
                      second time for **tmux** ; for example:
    
                            $ tmux neww 'foo\;' bar
                            $ tmux neww foo\\\; bar
    
                 3.   Semicolons that are not individual tokens or trailing
                      another token should only be escaped once according to
                      shell conventions; for example:
    
                            $ tmux neww 'foo-;-bar'
                            $ tmux neww foo-\;-bar
    
           Comments are marked by the unquoted # character - any remaining
           text after a comment is ignored until the end of the line.
    
           If the last character of a line is \, the line is joined with the
           following line (the \ and the newline are completely removed).
           This is called line continuation and applies both inside and
           outside quoted strings and in comments, but not inside braces.
    
           Command arguments may be specified as strings surrounded by single
           (') quotes, double quotes (") or braces ({}).  This is required
           when the argument contains any special character.  Single and
           double quoted strings cannot span multiple lines except with line
           continuation.  Braces can span multiple lines.
    
           Outside of quotes and inside double quotes, these replacements are
           performed:
    
                 **-** Environment variables preceded by $ are replaced with
                     their value from the global environment (see the “GLOBAL
                     AND SESSION ENVIRONMENT” section).
    
                 **-** A leading ~ or ~user is expanded to the home directory
                     of the current or specified user.
    
                 **-** \uXXXX or \uXXXXXXXX is replaced by the Unicode
                     codepoint corresponding to the given four or eight digit
                     hexadecimal number.
    
                 **-** When preceded (escaped) by a \, the following characters
                     are replaced: \e by the escape character; \r by a
                     carriage return; \n by a newline; and \t by a tab.
    
                 **-** \ooo is replaced by a character of the octal value ooo.
                     Three octal digits are required, for example \001.  The
                     largest valid character is \377.
    
                 **-** Any other characters preceded by \ are replaced by
                     themselves (that is, the \ is removed) and are not
                     treated as having any special meaning - so for example
                     \; will not mark a command sequence and \$ will not
                     expand an environment variable.
    
           Braces are parsed as a configuration file (so conditions such as
           ‘%if’ are processed) and then converted into a string.  They are
           designed to avoid the need for additional escaping when passing a
           group of **tmux** commands as an argument (for example to **if-shell**).
           These two examples produce an identical command - note that no
           escaping is needed when using {}:
    
                 if-shell true {
                     display -p 'brace-dollar-foo: }$foo'
                 }
    
                 if-shell true "display -p 'brace-dollar-foo: }\$foo'"
    
           Braces may be enclosed inside braces, for example:
    
                 bind x if-shell "true" {
                     if-shell "true" {
                         display "true!"
                     }
                 }
    
           Environment variables may be set by using the syntax ‘name=value’,
           for example ‘HOME=/home/user’.  Variables set during parsing are
           added to the global environment.  A hidden variable may be set
           with ‘%hidden’, for example:
    
                 %hidden MYVAR=42
    
           Hidden variables are not passed to the environment of processes
           created by tmux.  See the “GLOBAL AND SESSION ENVIRONMENT”
           section.
    
           Commands may be parsed conditionally by surrounding them with
           ‘%if’, ‘%elif’, ‘%else’ and ‘%endif’.  The argument to ‘%if’ and
           ‘%elif’ is expanded as a format (see “FORMATS”) and if it
           evaluates to false (zero or empty), subsequent text is ignored
           until the closing ‘%elif’, ‘%else’ or ‘%endif’.  For example:
    
                 %if "#{==:#{host},myhost}"
                 set -g status-style bg=red
                 %elif "#{==:#{host},myotherhost}"
                 set -g status-style bg=green
                 %else
                 set -g status-style bg=blue
                 %endif
    
           Will change the status line to red if running on ‘myhost’, green
           if running on ‘myotherhost’, or blue if running on another host.
           Conditionals may be given on one line, for example:
    
                 %if #{==:#{host},myhost} set -g status-style bg=red %endif
    


## COMMANDS



           This section describes the commands supported by **tmux**.  Most
           commands accept the optional **-t**(and sometimes **-s**) argument with
           one of _target-client_ , _target-session_ , _target-window_ , or
           _target-pane_.  These specify the client, session, window or pane
           which a command should affect.
    
           _target-client_ should be the name of the client, typically the
           _pty_(4) file to which the client is connected, for example either
           of _/dev/ttyp1_ or _ttyp1_ for the client attached to _/dev/ttyp1_.  If
           no client is specified, **tmux** attempts to work out the client
           currently in use; if that fails, an error is reported.  Clients
           may be listed with the **list-clients** command.
    
           _target-session_ is tried as, in order:
    
                 1.   A session ID prefixed with a $.
    
                 2.   An exact name of a session (as listed by the
                      **list-sessions** command).
    
                 3.   The start of a session name, for example ‘mysess’ would
                      match a session named ‘mysession’.
    
                 4.   A _glob_(7) pattern which is matched against the session
                      name.
    
           If the session name is prefixed with an ‘=’, only an exact match
           is accepted (so ‘=mysess’ will only match exactly ‘mysess’, not
           ‘mysession’).
    
           If a single session is found, it is used as the target session;
           multiple matches produce an error.  If a session is omitted, the
           current session is used if available; if no current session is
           available, the most recently used is chosen.
    
           _target-window_ (or _src-window_ or _dst-window_) specifies a window in
           the form _session_ :_window_.  _session_ follows the same rules as for
           _target-session_ , and _window_ is looked for in order as:
    
                 1.   A special token, listed below.
    
                 2.   A window index, for example ‘mysession:1’ is window 1
                      in session ‘mysession’.
    
                 3.   A window ID, such as @1.
    
                 4.   An exact window name, such as ‘mysession:mywindow’.
    
                 5.   The start of a window name, such as ‘mysession:mywin’.
    
                 6.   As a _glob_(7) pattern matched against the window name.
    
           Like sessions, a ‘=’ prefix will do an exact match only.  An empty
           window name specifies the next unused index if appropriate (for
           example the **new-window** and **link-window** commands) otherwise the
           current window in _session_ is chosen.
    
           The following special tokens are available to indicate particular
           windows.  Each has a single-character alternative form.
    
           **Token              Meaning**
           **{start}** ^    The lowest-numbered window
           **{end}** $    The highest-numbered window
           **{last}**!    The last (previously current) window
           **{next}** +    The next window by number
           **{previous}** -    The previous window by number
    
           _target-pane_ (or _src-pane_ or _dst-pane_) may be a pane ID or takes a
           similar form to _target-window_ but with the optional addition of a
           period followed by a pane index or pane ID, for example:
           ‘mysession:mywindow.1’.  If the pane index is omitted, the
           currently active pane in the specified window is used.  The
           following special tokens are available for the pane index:
    
           **Token                  Meaning**
           **{last}**!    The last (previously active) pane
           **{next}** +    The next pane by number
           **{previous}** -    The previous pane by number
           **{top}** The top pane
           **{bottom}** The bottom pane
           **{left}** The leftmost pane
           **{right}** The rightmost pane
           **{top-left}** The top-left pane
           **{top-right}** The top-right pane
           **{bottom-left}** The bottom-left pane
           **{bottom-right}** The bottom-right pane
           **{up-of}** The pane above the active pane
           **{down-of}** The pane below the active pane
           **{left-of}** The pane to the left of the active pane
           **{right-of}** The pane to the right of the active pane
    
           The tokens ‘+’ and ‘-’ may be followed by an offset, for example:
    
                 select-window -t:+2
    
           In addition, _target-session_ , _target-window_ or _target-pane_ may
           consist entirely of the token ‘{mouse}’ (alternative form ‘=’) to
           specify the session, window or pane where the most recent mouse
           event occurred (see the “MOUSE SUPPORT” section) or ‘{marked}’
           (alternative form ‘~’) to specify the marked pane (see **select-pane**
           **-m**).
    
           Sessions, window and panes are each numbered with a unique ID;
           session IDs are prefixed with a ‘$’, windows with a ‘@’, and panes
           with a ‘%’.  These are unique and are unchanged for the life of
           the session, window or pane in the **tmux** server.  The pane ID is
           passed to the child process of the pane in the TMUX_PANE
           environment variable.  IDs may be displayed using the
           ‘session_id’, ‘window_id’, or ‘pane_id’ formats (see the “FORMATS”
           section) and the **display-message** , **list-sessions** , **list-windows** or
           **list-panes** commands.
    
           _shell-command_ arguments are _sh_(1) commands.  This may be a single
           argument passed to the shell, for example:
    
                 new-window 'vi ~/.tmux.conf'
    
           Will run:
    
                 /bin/sh -c 'vi ~/.tmux.conf'
    
           Additionally, the **new-window** , **new-session** , **split-window** ,
           **respawn-window** and **respawn-pane** commands allow _shell-command_ to be
           given as multiple arguments and executed directly (without ‘sh
           -c’).  This can avoid issues with shell quoting.  For example:
    
                 $ tmux new-window vi ~/.tmux.conf
    
           Will run _vi_(1) directly without invoking the shell.
    
           _command_ [_argument ..._] refers to a **tmux** command, either passed
           with the command and arguments separately, for example:
    
                 bind-key F1 set-option status off
    
           Or passed as a single string argument in _.tmux.conf_ , for example:
    
                 bind-key F1 { set-option status off }
    
           Example **tmux** commands include:
    
                 refresh-client -t/dev/ttyp2
    
                 rename-session -tfirst newname
    
                 set-option -wt:0 monitor-activity on
    
                 new-window ; split-window -d
    
                 bind-key R source-file ~/.tmux.conf \; \
                         display-message "source-file done"
    
           Or from _sh_(1):
    
                 $ tmux kill-window -t :1
    
                 $ tmux new-window \; split-window -d
    
                 $ tmux new-session -d 'vi ~/.tmux.conf' \; split-window -d \; attach
    


## CLIENTS AND SESSIONS



           The **tmux** server manages clients, sessions, windows and panes.
           Clients are attached to sessions to interact with them, either
           when they are created with the **new-session** command, or later with
           the **attach-session** command.  Each session has one or more windows
           _linked_ into it.  Windows may be linked to multiple sessions and
           are made up of one or more panes, each of which contains a pseudo
           terminal.  Commands for creating, linking and otherwise
           manipulating windows are covered in the “WINDOWS AND PANES”
           section.
    
           The following commands are available to manage clients and
           sessions:
    
           **attach-session**[**-dErx**] [**-c** _working-directory_] [**-f** _flags_] [**-t**
                   _target-session_]
                         (alias: **attach**)
                   If run from outside **tmux** , attach to _target-session_ in the
                   current terminal.  _target-session_ must already exist - to
                   create a new session, see the **new-session** command (with **-A**
                   to create or attach).  If used from inside, switch the
                   currently attached session to _target-session_.  If **-d** is
                   specified, any other clients attached to the session are
                   detached.  If **-x** is given, send SIGHUP to the parent
                   process of the client as well as detaching the client,
                   typically causing it to exit.  **-f** sets a comma-separated
                   list of client flags.  The flags are:
    
                   active-pane
                           the client has an independent active pane
    
                   ignore-size
                           the client does not affect the size of other
                           clients
    
                   no-detach-on-destroy
                           do not detach the client when the session it is
                           attached to is destroyed if there are any other
                           sessions
    
                   no-output
                           the client does not receive pane output in control
                           mode
    
                   pause-after=seconds
                           output is paused once the pane is _seconds_ behind
                           in control mode
    
                   read-only
                           the client is read-only
    
                   wait-exit
                           wait for an empty line input before exiting in
                           control mode
    
                   A leading ‘!’ turns a flag off if the client is already
                   attached.  **-r** is an alias for **-f** _read-only,ignore-size_.
                   When a client is read-only, only keys bound to the
                   **detach-client** or **switch-client** commands have any effect.
                   A client with the _active-pane_ flag allows the active pane
                   to be selected independently of the window's active pane
                   used by clients without the flag.  This only affects the
                   cursor position and commands issued from the client; other
                   features such as hooks and styles continue to use the
                   window's active pane.
    
                   If no server is started, **attach-session** will attempt to
                   start it; this will fail unless sessions are created in
                   the configuration file.
    
                   The _target-session_ rules for **attach-session** are slightly
                   adjusted: if **tmux** needs to select the most recently used
                   session, it will prefer the most recently used _unattached_
                   session.
    
                   **-c** will set the session working directory (used for new
                   windows) to _working-directory_.
    
                   If **-E** is used, the **update-environment** option will not be
                   applied.
    
           **detach-client**[**-aP**] [**-E** _shell-command_] [**-s** _target-session_] [**-t**
                   _target-client_]
                         (alias: **detach**)
                   Detach the current client if bound to a key, the client
                   specified with **-t** , or all clients currently attached to
                   the session specified by **-s**.  The **-a** option kills all but
                   the client given with **-t**.  If **-P** is given, send SIGHUP to
                   the parent process of the client, typically causing it to
                   exit.  With **-E** , run _shell-command_ to replace the client.
    
           **has-session**[**-t** _target-session_]
                         (alias: **has**)
                   Report an error and exit with 1 if the specified session
                   does not exist.  If it does exist, exit with 0.
    
           **kill-server**
                   Kill the **tmux** server and clients and destroy all sessions.
    
           **kill-session**[**-aC**] [**-t** _target-session_]
                   Destroy the given session, closing any windows linked to
                   it and no other sessions, and detaching all clients
                   attached to it.  If **-a** is given, all sessions but the
                   specified one is killed.  The **-C** flag clears alerts (bell,
                   activity, or silence) in all windows linked to the
                   session.
    
           **list-clients**[**-F** _format_] [**-f** _filter_] [**-t** _target-session_]
                         (alias: **lsc**)
                   List all clients attached to the server.  **-F** specifies the
                   format of each line and **-f** a filter.  Only clients for
                   which the filter is true are shown.  See the “FORMATS”
                   section.  If _target-session_ is specified, list only
                   clients connected to that session.
    
           **list-commands**[**-F** _format_] [_command_]
                         (alias: **lscm**)
                   List the syntax of _command_ or - if omitted - of all
                   commands supported by **tmux**.
    
           **list-sessions**[**-F** _format_] [**-f** _filter_]
                         (alias: **ls**)
                   List all sessions managed by the server.  **-F** specifies the
                   format of each line and **-f** a filter.  Only sessions for
                   which the filter is true are shown.  See the “FORMATS”
                   section.
    
           **lock-client**[**-t** _target-client_]
                         (alias: **lockc**)
                   Lock _target-client_ , see the **lock-server** command.
    
           **lock-session**[**-t** _target-session_]
                         (alias: **locks**)
                   Lock all clients attached to _target-session_.
    
           **new-session**[**-AdDEPX**] [**-c** _start-directory_] [**-e** _environment_] [**-f**
                   _flags_] [**-F** _format_] [**-n** _window-name_] [**-s** _session-name_] [**-t**
                   _group-name_] [**-x** _width_] [**-y** _height_] [_shell-command_
                   [_argument ..._]]
                         (alias: **new**)
                   Create a new session with name _session-name_.
    
                   The new session is attached to the current terminal unless
                   **-d** is given.  _window-name_ and _shell-command_ are the name
                   of and shell command to execute in the initial window.
                   With **-d** , the initial size comes from the global
                   **default-size** option; **-x** and **-y** can be used to specify a
                   different size.  ‘-’ uses the size of the current client
                   if any.  If **-x** or **-y** is given, the **default-size** option is
                   set for the session.  **-f** sets a comma-separated list of
                   client flags (see **attach-session**).
    
                   If run from a terminal, any _termios_(4) special characters
                   are saved and used for new windows in the new session.
    
                   The **-A** flag makes **new-session** behave like **attach-session**
                   if _session-name_ already exists; if **-A** is given, **-D** behaves
                   like **-d** to **attach-session** , and **-X** behaves like **-x** to
                   **attach-session**.
    
                   If **-t** is given, it specifies a **session group**.  Sessions in
                   the same group share the same set of windows - new windows
                   are linked to all sessions in the group and any windows
                   closed removed from all sessions.  The current and
                   previous window and any session options remain independent
                   and any session in a group may be killed without affecting
                   the others.  The _group-name_ argument may be:
    
                   1.      the name of an existing group, in which case the
                           new session is added to that group;
    
                   2.      the name of an existing session - the new session
                           is added to the same group as that session,
                           creating a new group if necessary;
    
                   3.      the name for a new group containing only the new
                           session.
    
                   **-n** and _shell-command_ are invalid if **-t** is used.
    
                   The **-P** option prints information about the new session
                   after it has been created.  By default, it uses the format
                   ‘#{session_name}:’ but a different format may be specified
                   with **-F**.
    
                   If **-E** is used, the **update-environment** option will not be
                   applied.  **-e** takes the form ‘VARIABLE=value’ and sets an
                   environment variable for the newly created session; it may
                   be specified multiple times.
    
           **refresh-client**[**-cDLRSU**] [**-A** _pane:state_] [**-B** _name:what:format_] [**-C**
                   _size_] [**-f** _flags_] [**-l**[_target-pane_]] [**-r** _pane:report_] [**-t**
                   _target-client_] [_adjustment_]
                         (alias: **refresh**)
                   Refresh the current client if bound to a key, or a single
                   client if one is given with **-t**.  If **-S** is specified, only
                   update the client's status line.
    
                   The **-U** , **-D** , **-L -R** , and **-c** flags allow the visible portion
                   of a window which is larger than the client to be changed.
                   **-U** moves the visible part up by _adjustment_ rows and **-D**
                   down, **-L** left by _adjustment_ columns and **-R** right.  **-c**
                   returns to tracking the cursor automatically.  If
                   _adjustment_ is omitted, 1 is used.  Note that the visible
                   position is a property of the client not of the window,
                   changing the current window in the attached session will
                   reset it.
    
                   **-C** sets the width and height of a control mode client or
                   of a window for a control mode client, _size_ must be one of
                   ‘widthxheight’ or ‘window ID:widthxheight’, for example
                   ‘80x24’ or ‘@0:80x24’.  **-A** allows a control mode client to
                   trigger actions on a pane.  The argument is a pane ID
                   (with leading ‘%’), a colon, then one of ‘on’, ‘off’,
                   ‘continue’ or ‘pause’.  If ‘off’, **tmux** will not send
                   output from the pane to the client and if all clients have
                   turned the pane off, will stop reading from the pane.  If
                   ‘continue’, **tmux** will return to sending output to the pane
                   if it was paused (manually or with the _pause-after_ flag).
                   If ‘pause’, **tmux** will pause the pane.  **-A** may be given
                   multiple times for different panes.
    
                   **-B** sets a subscription to a format for a control mode
                   client.  The argument is split into three items by colons:
                   _name_ is a name for the subscription; _what_ is a type of
                   item to subscribe to; _format_ is the format.  After a
                   subscription is added, changes to the format are reported
                   with the **%subscription-changed** notification, at most once
                   a second.  If only the name is given, the subscription is
                   removed.  _what_ may be empty to check the format only for
                   the attached session, or one of: a pane ID such as ‘%0’;
                   ‘%*’ for all panes in the attached session; a window ID
                   such as ‘@0’; or ‘@*’ for all windows in the attached
                   session.
    
                   **-f** sets a comma-separated list of client flags, see
                   **attach-session**.  **-r** allows a control mode client to
                   provide information about a pane via a report (such as the
                   response to OSC 10).  The argument is a pane ID (with a
                   leading ‘%’), a colon, then a report escape sequence.
    
                   **-l** requests the clipboard from the client using the
                   _xterm_(1) escape sequence.  If _target-pane_ is given, the
                   clipboard is sent (in encoded form), otherwise it is
                   stored in a new paste buffer.
    
                   **-L** , **-R** , **-U** and **-D** move the visible portion of the window
                   left, right, up or down by _adjustment_ , if the window is
                   larger than the client.  **-c** resets so that the position
                   follows the cursor.  See the **window-size** option.
    
           **rename-session**[**-t** _target-session_] _new-name_
                         (alias: **rename**)
                   Rename the session to _new-name_.
    
           **server-access**[**-adlrw**] [_user_]
                   Change the access or read/write permission of _user_.  The
                   user running the **tmux** server (its owner) and the root user
                   cannot be changed and are always permitted access.
    
                   **-a** and **-d** are used to give or revoke access for the
                   specified user.  If the user is already attached, the **-d**
                   flag causes their clients to be detached.
    
                   **-r** and **-w** change the permissions for _user_ : **-r** makes their
                   clients read-only and **-w** writable.  **-l** lists current
                   access permissions.
    
                   By default, the access list is empty and **tmux** creates
                   sockets with file system permissions preventing access by
                   any user other than the owner (and root).  These
                   permissions must be changed manually.  Great care should
                   be taken not to allow access to untrusted users even read-
                   only.
    
           **show-messages**[**-JT**] [**-t** _target-client_]
                         (alias: **showmsgs**)
                   Show server messages or information.  Messages are stored,
                   up to a maximum of the limit set by the _message-limit_
                   server option.  **-J** and **-T** show debugging information about
                   jobs and terminals.
    
           **source-file**[**-Fnqv**] [**-t** _target-pane_] _path ..._
                         (alias: **source**)
                   Execute commands from one or more files specified by _path_
                   (which may be _glob_(7) patterns).  If **-F** is present, then
                   _path_ is expanded as a format.  If **-q** is given, no error
                   will be returned if _path_ does not exist.  With **-n** , the
                   file is parsed but no commands are executed.  **-v** shows the
                   parsed commands and line numbers if possible.
    
           **start-server**
                         (alias: **start**)
                   Start the **tmux** server, if not already running, without
                   creating any sessions.
    
                   Note that as by default the **tmux** server will exit with no
                   sessions, this is only useful if a session is created in
                   _~/.tmux.conf_ , **exit-empty** is turned off, or another command
                   is run as part of the same command sequence.  For example:
    
                         $ tmux start \; show -g
    
           **suspend-client**[**-t** _target-client_]
                         (alias: **suspendc**)
                   Suspend a client by sending SIGTSTP (tty stop).
    
           **switch-client**[**-ElnprZ**] [**-c** _target-client_] [**-t** _target-session_] [**-T**
                   _key-table_]
                         (alias: **switchc**)
                   Switch the current session for client _target-client_ to
                   _target-session_.  As a special case, **-t** may refer to a pane
                   (a target that contains ‘:’, ‘.’ or ‘%’), to change
                   session, window and pane.  In that case, **-Z** keeps the
                   window zoomed if it was zoomed.  If **-l** , **-n** or **-p** is used,
                   the client is moved to the last, next or previous session
                   respectively.  **-r** toggles the client **read-only** and
                   **ignore-size** flags (see the **attach-session** command).
    
                   If **-E** is used, **update-environment** option will not be
                   applied.
    
                   **-T** sets the client's key table; the next key from the
                   client will be interpreted from _key-table_.  This may be
                   used to configure multiple prefix keys, or to bind
                   commands to sequences of keys.  For example, to make
                   typing ‘abc’ run the **list-keys** command:
    
                         bind-key -Ttable2 c list-keys
                         bind-key -Ttable1 b switch-client -Ttable2
                         bind-key -Troot   a switch-client -Ttable1
    


## WINDOWS AND PANES



           Each window displayed by **tmux** may be split into one or more _panes_ ;
           each pane takes up a certain area of the display and is a separate
           terminal.  A window may be split into panes using the **split-window**
           command.  Windows may be split horizontally (with the **-h** flag) or
           vertically.  Panes may be resized with the **resize-pane** command
           (bound to ‘C-Up’, ‘C-Down’ ‘C-Left’ and ‘C-Right’ by default), the
           current pane may be changed with the **select-pane** command and the
           **rotate-window** and **swap-pane** commands may be used to swap panes
           without changing their position.  Panes are numbered beginning
           from zero in the order they are created.
    
           By default, a **tmux** pane permits direct access to the terminal
           contained in the pane.  A pane may also be put into one of several
           modes:
    
                 **-** Copy mode, which permits a section of a window or its
                     history to be copied to a _paste buffer_ for later
                     insertion into another window.  This mode is entered
                     with the **copy-mode** command, bound to ‘[’ by default.
                     Copied text can be pasted with the **paste-buffer** command,
                     bound to ‘]’.
    
                 **-** View mode, which is like copy mode but is entered when a
                     command that produces output, such as **list-keys** , is
                     executed from a key binding.
    
                 **-** Choose mode, which allows an item to be chosen from a
                     list.  This may be a client, a session or window or
                     pane, or a buffer.  This mode is entered with the
                     **choose-buffer** , **choose-client** and **choose-tree** commands.
    
           In copy mode an indicator is displayed in the top-right corner of
           the pane with the current position and the number of lines in the
           history.
    
           Commands are sent to copy mode using the **-X** flag to the **send-keys**
           command.  When a key is pressed, copy mode automatically uses one
           of two key tables, depending on the **mode-keys** option: **copy-mode**
           for emacs, or **copy-mode-vi** for vi.  Key tables may be viewed with
           the **list-keys** command.
    
           The following commands are supported in copy mode:
    
           **append-selection**
                   Append the selection to the top paste buffer.
    
           **append-selection-and-cancel**(vi: A)
                   Append the selection to the top paste buffer and exit copy
                   mode.
    
           **back-to-indentation**(vi: ^) (emacs: M-m)
                   Move the cursor back to the indentation.
    
           **begin-selection**(vi: Space) (emacs: C-Space)
                   Begin selection.
    
           **bottom-line**(vi: L)
                   Move to the bottom line.
    
           **cancel**(vi: q) (emacs: Escape)
                   Exit copy mode.
    
           **clear-selection**(vi: Escape) (emacs: C-g)
                   Clear the current selection.
    
           **copy-end-of-line**[**-CP**] [_prefix_]
                   Copy from the cursor position to the end of the line.
                   _prefix_ is used to name the new paste buffer.
    
           **copy-end-of-line-and-cancel**[**-CP**] [_prefix_]
                   Copy from the cursor position and exit copy mode.
    
           **copy-pipe-end-of-line**[**-CP**] [_command_] [_prefix_]
                   Copy from the cursor position to the end of the line and
                   pipe the text to _command_.  _prefix_ is used to name the new
                   paste buffer.
    
           **copy-pipe-end-of-line-and-cancel**[**-CP**] [_command_] [_prefix_]
                   Same as **copy-pipe-end-of-line** but also exit copy mode.
    
           **copy-line**[**-CP**] [_prefix_]
                   Copy the entire line.
    
           **copy-line-and-cancel**[**-CP**] [_prefix_]
                   Copy the entire line and exit copy mode.
    
           **copy-pipe-line**[**-CP**] [_command_] [_prefix_]
                   Copy the entire line and pipe the text to _command_.  _prefix_
                   is used to name the new paste buffer.
    
           **copy-pipe-line-and-cancel**[**-CP**] [_command_] [_prefix_]
                   Same as **copy-pipe-line** but also exit copy mode.
    
           **copy-pipe**[**-CP**] [_command_] [_prefix_]
                   Copy the selection, clear it and pipe its text to _command_.
                   _prefix_ is used to name the new paste buffer.
    
           **copy-pipe-no-clear**[**-CP**] [_command_] [_prefix_]
                   Same as **copy-pipe** but do not clear the selection.
    
           **copy-pipe-and-cancel**[**-CP**] [_command_] [_prefix_]
                   Same as **copy-pipe** but also exit copy mode.
    
           **copy-selection**[**-CP**] [_prefix_]
                   Copies the current selection.
    
           **copy-selection-no-clear**[**-CP**] [_prefix_]
                   Same as **copy-selection** but do not clear the selection.
    
           **copy-selection-and-cancel**[**-CP**] [_prefix_] (vi: Enter) (emacs: M-w)
                   Copy the current selection and exit copy mode.
    
           **cursor-down**(vi: j) (emacs: Down)
                   Move the cursor down.
    
           **cursor-down-and-cancel**
                   Same as **cursor-down** but also exit copy mode if reaching
                   the bottom.
    
           **cursor-left**(vi: h) (emacs: Left)
                   Move the cursor left.
    
           **cursor-right**(vi: l) (emacs: Right)
                   Move the cursor right.
    
           **cursor-up**(vi: k) (emacs: Up)
                   Move the cursor up.
    
           **end-of-line**(vi: $) (emacs: C-e)
                   Move the cursor to the end of the line.
    
           **goto-line** _line_ (vi: :) (emacs: g)
                   Move the cursor to a specific line.
    
           **halfpage-down**(vi: C-d) (emacs: M-Down)
                   Scroll down by half a page.
    
           **halfpage-down-and-cancel**
                   Same as **halfpage-down** but also exit copy mode if reaching
                   the bottom.
    
           **halfpage-up**(vi: C-u) (emacs: M-Up)
                   Scroll up by half a page.
    
           **history-bottom**(vi: G) (emacs: M->)
                   Scroll to the bottom of the history.
    
           **history-top**(vi: g) (emacs: M-<)
                   Scroll to the top of the history.
    
           **jump-again**(vi: ;) (emacs: ;)
                   Repeat the last jump.
    
           **jump-backward** _to_ (vi: F) (emacs: F)
                   Jump backwards to the specified text.
    
           **jump-forward** _to_ (vi: f) (emacs: f)
                   Jump forward to the specified text.
    
           **jump-reverse**(vi: ,) (emacs: ,)
                   Repeat the last jump in the reverse direction (forward
                   becomes backward and backward becomes forward).
    
           **jump-to-backward** _to_ (vi: T)
                   Jump backwards, but one character less, placing the cursor
                   on the character after the target.
    
           **jump-to-forward** _to_ (vi: t)
                   Jump forward, but one character less, placing the cursor
                   on the character before the target.
    
           **jump-to-mark**(vi: M-x) (emacs: M-x)
                   Jump to the last mark.
    
           **middle-line**(vi: M) (emacs: M-r)
                   Move to the middle line.
    
           **next-matching-bracket**(vi: %) (emacs: M-C-f)
                   Move to the next matching bracket.
    
           **next-paragraph**(vi: }) (emacs: M-})
                   Move to the next paragraph.
    
           **next-prompt**[**-o**]
                   Move to the next prompt.
    
           **next-word**(vi: w)
                   Move to the next word.
    
           **next-word-end**(vi: e) (emacs: M-f)
                   Move to the end of the next word.
    
           **next-space**(vi: W)
                   Same as **next-word** but use a space alone as the word
                   separator.
    
           **next-space-end**(vi: E)
                   Same as **next-word-end** but use a space alone as the word
                   separator.
    
           **other-end**(vi: o)
                   Switch at which end of the selection the cursor sits.
    
           **page-down**(vi: C-f) (emacs: PageDown)
                   Scroll down by one page.
    
           **page-down-and-cancel**
                   Same as **page-down** but also exit copy mode if reaching the
                   bottom.
    
           **page-up**(vi: C-b) (emacs: PageUp)
                   Scroll up by one page.
    
           **pipe**[_command_]
                   Pipe the selected text to _command_ and clear the selection.
    
           **pipe-no-clear**[_command_]
                   Same as **pipe** but do not clear the selection.
    
           **pipe-and-cancel**[_command_] [_prefix_]
                   Same as **pipe** but also exit copy mode.
    
           **previous-matching-bracket**(emacs: M-C-b)
                   Move to the previous matching bracket.
    
           **previous-paragraph**(vi: {) (emacs: M-{)
                   Move to the previous paragraph.
    
           **previous-prompt**[**-o**]
                   Move to the previous prompt.
    
           **previous-word**(vi: b) (emacs: M-b)
                   Move to the previous word.
    
           **previous-space**(vi: B)
                   Same as **previous-word** but use a space alone as the word
                   separator.
    
           **rectangle-on**
                   Turn on rectangle selection mode.
    
           **rectangle-off**
                   Turn off rectangle selection mode.
    
           **rectangle-toggle**(vi: v) (emacs: R)
                   Toggle rectangle selection mode.
    
           **refresh-from-pane**(vi: r) (emacs: r)
                   Refresh the content from the pane.
    
           **scroll-bottom**
                   Scroll up until the current line is at the bottom while
                   keeping the cursor on that line.
    
           **scroll-down**(vi: C-e) (emacs: C-Down)
                   Scroll down.
    
           **scroll-down-and-cancel**
                   Same as **scroll-down** but also exit copy mode if the cursor
                   reaches the bottom.
    
           **scroll-middle**(vi: z)
                   Scroll so that the current line becomes the middle one
                   while keeping the cursor on that line.
    
           **scroll-top**
                   Scroll down until the current line is at the top while
                   keeping the cursor on that line.
    
           **scroll-up**(vi: C-y) (emacs: C-Up)
                   Scroll up.
    
           **search-again**(vi: n) (emacs: n)
                   Repeat the last search.
    
           **search-backward** _text_ (vi: ?)
                   Search backwards for the specified text.
    
           **search-backward-incremental** _text_ (emacs: C-r)
                   Search backwards incrementally for the specified text.  Is
                   expected to be used with the **-i** flag to the **command-prompt**
                   command.
    
           **search-backward-text** _text_
                   Search backwards for the specified plain text.
    
           **search-forward** _text_ (vi: /)
                   Search forward for the specified text.
    
           **search-forward-incremental** _text_ (emacs: C-s)
                   Search forward incrementally for the specified text.  Is
                   expected to be used with the **-i** flag to the **command-prompt**
                   command.
    
           **search-forward-text** _text_
                   Search forward for the specified plain text.
    
           **search-reverse**(vi: N) (emacs: N)
                   Repeat the last search in the reverse direction (forward
                   becomes backward and backward becomes forward).
    
           **select-line**(vi: V)
                   Select the current line.
    
           **select-word**
                   Select the current word.
    
           **set-mark**(vi: X) (emacs: X)
                   Mark the current line.
    
           **start-of-line**(vi: 0) (emacs: C-a)
                   Move the cursor to the start of the line.
    
           **stop-selection**
                   Stop selecting without clearing the current selection.
    
           **toggle-position**(vi: P) (emacs: P)
                   Toggle the visibility of the position indicator in the top
                   right.
    
           **top-line**(vi: H) (emacs: M-R)
                   Move to the top line.
    
           The search commands come in several varieties: ‘search-forward’
           and ‘search-backward’ search for a regular expression; the ‘-text’
           variants search for a plain text string rather than a regular
           expression; ‘-incremental’ perform an incremental search and
           expect to be used with the **-i** flag to the **command-prompt** command.
           ‘search-again’ repeats the last search and ‘search-reverse’ does
           the same but reverses the direction (forward becomes backward and
           backward becomes forward).
    
           The default incremental search key bindings, ‘C-r’ and ‘C-s’, are
           designed to emulate _emacs_(1).  When first pressed they allow a new
           search term to be entered; if pressed with an empty search term
           they repeat the previously used search term.
    
           The ‘next-prompt’ and ‘previous-prompt’ move between shell
           prompts, but require the shell to emit an escape sequence
           (\033]133;A\033\\) to tell **tmux** where the prompts are located; if
           the shell does not do this, these commands will do nothing.  The
           **-o** flag jumps to the beginning of the command output instead of
           the shell prompt.  Finding the beginning of command output
           requires the shell to emit an escape sequence (\033]133;C\033\\)
           to tell tmux where the output begins.  If the shell does not send
           these escape sequences, these commands do nothing.
    
           Copy commands may take an optional buffer prefix argument which is
           used to generate the buffer name (the default is ‘buffer’ so
           buffers are named ‘buffer0’, ‘buffer1’ and so on).  Pipe commands
           take a command argument which is the command to which the selected
           text is piped.  ‘copy-pipe’ variants also copy the selection.  The
           ‘-and-cancel’ variants of some commands exit copy mode after they
           have completed (for copy commands) or when the cursor reaches the
           bottom (for scrolling commands).  ‘-no-clear’ variants do not
           clear the selection.  All the copy commands can take the **-C** and **-P**
           flags.  The **-C** flag suppresses setting the terminal clipboard when
           copying, while the **-P** flag suppresses adding a paste buffer with
           the text.
    
           The next and previous word keys skip over whitespace and treat
           consecutive runs of either word separators or other letters as
           words.  Word separators can be customized with the _word-separators_
           session option.  Next word moves to the start of the next word,
           next word end to the end of the next word and previous word to the
           start of the previous word.  The three next and previous space
           keys work similarly but use a space alone as the word separator.
           Setting _word-separators_ to the empty string makes next/previous
           word equivalent to next/previous space.
    
           The jump commands enable quick movement within a line.  For
           instance, typing ‘f’ followed by ‘/’ will move the cursor to the
           next ‘/’ character on the current line.  A ‘;’ will then jump to
           the next occurrence.
    
           Commands in copy mode may be prefaced by an optional repeat count.
           With vi key bindings, a prefix is entered using the number keys;
           with emacs, the Alt (meta) key and a number begins prefix entry.
    
           The synopsis for the **copy-mode** command is:
    
           **copy-mode**[**-deHMqSu**] [**-s** _src-pane_] [**-t** _target-pane_]
                   Enter copy mode.
    
                   **-u** enters copy mode and scrolls one page up and **-d** one
                   page down.  **-H** hides the position indicator in the top
                   right.  **-q** cancels copy mode and any other modes.
    
                   **-M** begins a mouse drag (only valid if bound to a mouse key
                   binding, see “MOUSE SUPPORT”).  **-S** scrolls when bound to a
                   mouse drag event; for example, **copy-mode -Se** is bound to
                   _MouseDrag1ScrollbarSlider_ by default.
    
                   **-s** copies from _src-pane_ instead of _target-pane_.
    
                   **-e** specifies that scrolling to the bottom of the history
                   (to the visible screen) should exit copy mode.  While in
                   copy mode, pressing a key other than those used for
                   scrolling will disable this behaviour.  This is intended
                   to allow fast scrolling through a pane's history, for
                   example with:
    
                         bind PageUp copy-mode -eu
                         bind PageDown copy-mode -ed
    
           A number of preset arrangements of panes are available, these are
           called layouts.  These may be selected with the **select-layout**
           command or cycled with **next-layout**(bound to ‘Space’ by default);
           once a layout is chosen, panes within it may be moved and resized
           as normal.
    
           The following layouts are supported:
    
           **even-horizontal**
                   Panes are spread out evenly from left to right across the
                   window.
    
           **even-vertical**
                   Panes are spread evenly from top to bottom.
    
           **main-horizontal**
                   A large (main) pane is shown at the top of the window and
                   the remaining panes are spread from left to right in the
                   leftover space at the bottom.  Use the _main-pane-height_
                   window option to specify the height of the top pane.
    
           **main-horizontal-mirrored**
                   The same as **main-horizontal** but mirrored so the main pane
                   is at the bottom of the window.
    
           **main-vertical**
                   A large (main) pane is shown on the left of the window and
                   the remaining panes are spread from top to bottom in the
                   leftover space on the right.  Use the _main-pane-width_
                   window option to specify the width of the left pane.
    
           **main-vertical-mirrored**
                   The same as **main-vertical** but mirrored so the main pane is
                   on the right of the window.
    
           **tiled** Panes are spread out as evenly as possible over the window
                   in both rows and columns.
    
           In addition, **select-layout** may be used to apply a previously used
           layout - the **list-windows** command displays the layout of each
           window in a form suitable for use with **select-layout**.  For
           example:
    
                 $ tmux list-windows
                 0: ksh [159x48]
                     layout: bb62,159x48,0,0{79x48,0,0,79x48,80,0}
                 $ tmux select-layout 'bb62,159x48,0,0{79x48,0,0,79x48,80,0}'
    
           **tmux** automatically adjusts the size of the layout for the current
           window size.  Note that a layout cannot be applied to a window
           with more panes than that from which the layout was originally
           defined.
    
           Commands related to windows and panes are as follows:
    
           **break-pane**[**-abdP**] [**-F** _format_] [**-n** _window-name_] [**-s** _src-pane_] [**-t**
                   _dst-window_]
                         (alias: **breakp**)
                   Break _src-pane_ off from its containing window to make it
                   the only pane in _dst-window_.  With **-a** or **-b** , the window is
                   moved to the next index after or before (existing windows
                   are moved if necessary).  If **-d** is given, the new window
                   does not become the current window.  The **-P** option prints
                   information about the new window after it has been
                   created.  By default, it uses the format
                   ‘#{session_name}:#{window_index}.#{pane_index}’ but a
                   different format may be specified with **-F**.
    
           **capture-pane**[**-aepPqCJMN**] [**-b** _buffer-name_] [**-E** _end-line_] [**-S**
                   _start-line_] [**-t** _target-pane_]
                         (alias: **capturep**)
                   Capture the contents of a pane.  If **-p** is given, the
                   output goes to stdout, otherwise to the buffer specified
                   with **-b** or a new buffer if omitted.  If **-a** is given, the
                   alternate screen is used, and the history is not
                   accessible.  If no alternate screen exists, an error will
                   be returned unless **-q** is given.  Similarly, if the pane is
                   in a mode, **-M** uses the screen for the mode.  If **-e** is
                   given, the output includes escape sequences for text and
                   background attributes.  **-C** also escapes non-printable
                   characters as octal \xxx.  **-T** ignores trailing positions
                   that do not contain a character.  **-N** preserves trailing
                   spaces at each line's end and **-J** preserves trailing spaces
                   and joins any wrapped lines; **-J** implies **-T**.  **-P** captures
                   only any output that the pane has received that is the
                   beginning of an as-yet incomplete escape sequence.
    
                   **-S** and **-E** specify the starting and ending line numbers,
                   zero is the first line of the visible pane and negative
                   numbers are lines in the history.  ‘-’ to **-S** is the start
                   of the history and to **-E** the end of the visible pane.  The
                   default is to capture only the visible contents of the
                   pane.
    
           **choose-client**[**-NryZ**] [**-F** _format_] [**-f** _filter_] [**-K** _key-format_] [**-O**
                   _sort-order_] [**-t** _target-pane_] [_template_]
                   Put a pane into client mode, allowing a client to be
                   selected interactively from a list.  Each client is shown
                   on one line.  A shortcut key is shown on the left in
                   brackets allowing for immediate choice, or the list may be
                   navigated and an item chosen or otherwise manipulated
                   using the keys below.  **-Z** zooms the pane.  **-y** disables any
                   confirmation prompts.  The following keys may be used in
                   client mode:
    
                         **Key    Function**
                         **Enter** Choose selected client
                         **Up** Select previous client
                         **Down** Select next client
                         **C-s** Search by name
                         **n** Repeat last search forwards
                         **N** Repeat last search backwards
                         **t** Toggle if client is tagged
                         **T** Tag no clients
                         **C-t** Tag all clients
                         **d** Detach selected client
                         **D** Detach tagged clients
                         **x** Detach and HUP selected client
                         **X** Detach and HUP tagged clients
                         **z** Suspend selected client
                         **Z** Suspend tagged clients
                         **f** Enter a format to filter items
                         **O** Change sort field
                         **r** Reverse sort order
                         **v** Toggle preview
                         **q** Exit mode
    
                   After a client is chosen, ‘%%’ is replaced by the client
                   name in _template_ and the result executed as a command.  If
                   _template_ is not given, "detach-client -t '%%'" is used.
    
                   **-O** specifies the initial sort field: one of ‘name’,
                   ‘size’, ‘creation’ (time), or ‘activity’ (time).  **-r**
                   reverses the sort order.  **-f** specifies an initial filter:
                   the filter is a format - if it evaluates to zero, the item
                   in the list is not shown, otherwise it is shown.  If a
                   filter would lead to an empty list, it is ignored.  **-F**
                   specifies the format for each item in the list and **-K** a
                   format for each shortcut key; both are evaluated once for
                   each line.  **-N** starts without the preview or if given
                   twice with the larger preview.  This command works only if
                   at least one client is attached.
    
           **choose-tree**[**-GNrswyZ**] [**-F** _format_] [**-f** _filter_] [**-K** _key-format_] [**-O**
                   _sort-order_] [**-t** _target-pane_] [_template_]
                   Put a pane into tree mode, where a session, window or pane
                   may be chosen interactively from a tree.  Each session,
                   window or pane is shown on one line.  A shortcut key is
                   shown on the left in brackets allowing for immediate
                   choice, or the tree may be navigated and an item chosen or
                   otherwise manipulated using the keys below.  **-s** starts
                   with sessions collapsed and **-w** with windows collapsed.  **-Z**
                   zooms the pane.  **-y** disables any confirmation prompts.
                   The following keys may be used in tree mode:
    
                         **Key    Function**
                         **Enter** Choose selected item
                         **Up** Select previous item
                         **Down** Select next item
                         **S-Up** Swap the current window with the previous one
                         **S-Down** Swap the current window with the next one
                         **+** Expand selected item
                         **-** Collapse selected item
                         **M-+** Expand all items
                         **M--** Collapse all items
                         **x** Kill selected item
                         **X** Kill tagged items
                         **<      **Scroll list of previews left
                         **>      **Scroll list of previews right
                         **C-s** Search by name
                         **m** Set the marked pane
                         **M** Clear the marked pane
                         **n** Repeat last search forwards
                         **N** Repeat last search backwards
                         **t** Toggle if item is tagged
                         **T** Tag no items
                         **C-t** Tag all items
                         **:** Run a command for each tagged item
                         **f** Enter a format to filter items
                         **H** Jump to the starting pane
                         **O** Change sort field
                         **r** Reverse sort order
                         **v** Toggle preview
                         **q** Exit mode
    
                   After a session, window or pane is chosen, the first
                   instance of ‘%%’ and all instances of ‘%1’ are replaced by
                   the target in _template_ and the result executed as a
                   command.  If _template_ is not given, "switch-client -t
                   '%%'" is used.
    
                   **-O** specifies the initial sort field: one of ‘index’,
                   ‘name’, or ‘time’ (activity).  **-r** reverses the sort order.
                   **-f** specifies an initial filter: the filter is a format -
                   if it evaluates to zero, the item in the list is not
                   shown, otherwise it is shown.  If a filter would lead to
                   an empty list, it is ignored.  **-F** specifies the format for
                   each item in the tree and **-K** a format for each shortcut
                   key; both are evaluated once for each line.  **-N** starts
                   without the preview or if given twice with the larger
                   preview.  **-G** includes all sessions in any session groups
                   in the tree rather than only the first.  This command
                   works only if at least one client is attached.
    
           **customize-mode**[**-NZ**] [**-F** _format_] [**-f** _filter_] [**-t** _target-pane_]
                   [_template_]
                   Put a pane into customize mode, where options and key
                   bindings may be browsed and modified from a list.  Option
                   values in the list are shown for the active pane in the
                   current window.  **-Z** zooms the pane.  The following keys
                   may be used in customize mode:
    
                         **Key    Function**
                         **Enter** Set pane, window, session or global option
                                            value
                         **Up** Select previous item
                         **Down** Select next item
                         **+** Expand selected item
                         **-** Collapse selected item
                         **M-+** Expand all items
                         **M--** Collapse all items
                         **s** Set option value or key attribute
                         **S** Set global option value
                         **w** Set window option value, if option is for
                                            pane and window
                         **d** Set an option or key to the default
                         **D** Set tagged options and tagged keys to the
                                            default
                         **u** Unset an option (set to default value if
                                            global) or unbind a key
                         **U** Unset tagged options and unbind tagged keys
                         **C-s** Search by name
                         **n** Repeat last search forwards
                         **N** Repeat last search backwards
                         **t** Toggle if item is tagged
                         **T** Tag no items
                         **C-t** Tag all items
                         **f** Enter a format to filter items
                         **v** Toggle option information
                         **q** Exit mode
    
                   **-f** specifies an initial filter: the filter is a format -
                   if it evaluates to zero, the item in the list is not
                   shown, otherwise it is shown.  If a filter would lead to
                   an empty list, it is ignored.  **-F** specifies the format for
                   each item in the tree.  **-N** starts without the option
                   information.  This command works only if at least one
                   client is attached.
    
           **display-panes**[**-bN**] [**-d** _duration_] [**-t** _target-client_] [_template_]
                         (alias: **displayp**)
                   Display a visible indicator of each pane shown by
                   _target-client_.  See the **display-panes-colour** and
                   **display-panes-active-colour** session options.  The
                   indicator is closed when a key is pressed (unless **-N** is
                   given) or _duration_ milliseconds have passed.  If **-d** is not
                   given, **display-panes-time** is used.  A duration of zero
                   means the indicator stays until a key is pressed.  While
                   the indicator is on screen, a pane may be chosen with the
                   ‘0’ to ‘9’ keys, which will cause _template_ to be executed
                   as a command with ‘%%’ substituted by the pane ID.  The
                   default _template_ is "select-pane -t '%%'".  With **-b** , other
                   commands are not blocked from running until the indicator
                   is closed.
    
           **find-window**[**-iCNrTZ**] [**-t** _target-pane_] _match-string_
                         (alias: **findw**)
                   Search for a _glob_(7) pattern or, with **-r** , regular
                   expression _match-string_ in window names, titles, and
                   visible content (but not history).  The flags control
                   matching behavior: **-C** matches only visible window
                   contents, **-N** matches only the window name and **-T** matches
                   only the window title.  **-i** makes the search ignore case.
                   The default is **-CNT**.  **-Z** zooms the pane.
    
                   This command works only if at least one client is
                   attached.
    
           **join-pane**[**-bdfhv**] [**-l** _size_] [**-s** _src-pane_] [**-t** _dst-pane_]
                         (alias: **joinp**)
                   Like **split-window** , but instead of splitting _dst-pane_ and
                   creating a new pane, split it and move _src-pane_ into the
                   space.  This can be used to reverse **break-pane**.  The **-b**
                   option causes _src-pane_ to be joined to left of or above
                   _dst-pane_.
    
                   If **-s** is omitted and a marked pane is present (see
                   **select-pane -m**), the marked pane is used rather than the
                   current pane.
    
           **kill-pane**[**-a**] [**-t** _target-pane_]
                         (alias: **killp**)
                   Destroy the given pane.  If no panes remain in the
                   containing window, it is also destroyed.  The **-a** option
                   kills all but the pane given with **-t**.
    
           **kill-window**[**-a**] [**-t** _target-window_]
                         (alias: **killw**)
                   Kill the current window or the window at _target-window_ ,
                   removing it from any sessions to which it is linked.  The
                   **-a** option kills all but the window given with **-t**.
    
           **last-pane**[**-deZ**] [**-t** _target-window_]
                         (alias: **lastp**)
                   Select the last (previously selected) pane.  **-Z** keeps the
                   window zoomed if it was zoomed.  **-e** enables or **-d** disables
                   input to the pane.
    
           **last-window**[**-t** _target-session_]
                         (alias: **last**)
                   Select the last (previously selected) window.  If no
                   _target-session_ is specified, select the last window of the
                   current session.
    
           **link-window**[**-abdk**] [**-s** _src-window_] [**-t** _dst-window_]
                         (alias: **linkw**)
                   Link the window at _src-window_ to the specified _dst-window_.
                   If _dst-window_ is specified and no such window exists, the
                   _src-window_ is linked there.  With **-a** or **-b** the window is
                   moved to the next index after or before _dst-window_
                   (existing windows are moved if necessary).  If **-k** is given
                   and _dst-window_ exists, it is killed, otherwise an error is
                   generated.  If **-d** is given, the newly linked window is not
                   selected.
    
           **list-panes**[**-as**] [**-F** _format_] [**-f** _filter_] [**-t** _target_]
                         (alias: **lsp**)
                   If **-a** is given, _target_ is ignored and all panes on the
                   server are listed.  If **-s** is given, _target_ is a session
                   (or the current session).  If neither is given, _target_ is
                   a window (or the current window).  **-F** specifies the format
                   of each line and **-f** a filter.  Only panes for which the
                   filter is true are shown.  See the “FORMATS” section.
    
           **list-windows**[**-a**] [**-F** _format_] [**-f** _filter_] [**-t** _target-session_]
                         (alias: **lsw**)
                   If **-a** is given, list all windows on the server.
                   Otherwise, list windows in the current session or in
                   _target-session_.  **-F** specifies the format of each line and
                   **-f** a filter.  Only windows for which the filter is true
                   are shown.  See the “FORMATS” section.
    
           **move-pane**[**-bdfhv**] [**-l** _size_] [**-s** _src-pane_] [**-t** _dst-pane_]
                         (alias: **movep**)
                   Does the same as **join-pane**.
    
           **move-window**[**-abrdk**] [**-s** _src-window_] [**-t** _dst-window_]
                         (alias: **movew**)
                   This is similar to **link-window** , except the window at
                   _src-window_ is moved to _dst-window_.  With **-r** , all windows
                   in the session are renumbered in sequential order,
                   respecting the **base-index** option.
    
           **new-window**[**-abdkPS**] [**-c** _start-directory_] [**-e** _environment_] [**-F**
                   _format_] [**-n** _window-name_] [**-t** _target-window_] [_shell-command_
                   [_argument ..._]]
                         (alias: **neww**)
                   Create a new window.  With **-a** or **-b** , the new window is
                   inserted at the next index after or before the specified
                   _target-window_ , moving windows up if necessary; otherwise
                   _target-window_ is the new window location.
    
                   If **-d** is given, the session does not make the new window
                   the current window.  _target-window_ represents the window
                   to be created; if the target already exists an error is
                   shown, unless the **-k** flag is used, in which case it is
                   destroyed.  If **-S** is given and a window named _window-name_
                   already exists, it is selected (unless **-d** is also given in
                   which case the command does nothing).
    
                   _shell-command_ is the command to execute.  If _shell-command_
                   is not specified, the value of the **default-command** option
                   is used.  **-c** specifies the working directory in which the
                   new window is created.
    
                   When the shell command completes, the window closes.  See
                   the **remain-on-exit** option to change this behaviour.
    
                   **-e** takes the form ‘VARIABLE=value’ and sets an environment
                   variable for the newly created window; it may be specified
                   multiple times.
    
                   The TERM environment variable must be set to ‘screen’ or
                   ‘tmux’ for all programs running _inside_ **tmux**.  New windows
                   will automatically have ‘TERM=screen’ added to their
                   environment, but care must be taken not to reset this in
                   shell start-up files or by the **-e** option.
    
                   The **-P** option prints information about the new window
                   after it has been created.  By default, it uses the format
                   ‘#{session_name}:#{window_index}’ but a different format
                   may be specified with **-F**.
    
           **next-layout**[**-t** _target-window_]
                         (alias: **nextl**)
                   Move a window to the next layout and rearrange the panes
                   to fit.
    
           **next-window**[**-a**] [**-t** _target-session_]
                         (alias: **next**)
                   Move to the next window in the session.  If **-a** is used,
                   move to the next window with an alert.
    
           **pipe-pane**[**-IOo**] [**-t** _target-pane_] [_shell-command_]
                         (alias: **pipep**)
                   Pipe output sent by the program in _target-pane_ to a shell
                   command or vice versa.  A pane may only be connected to
                   one command at a time, any existing pipe is closed before
                   _shell-command_ is executed.  The _shell-command_ string may
                   contain the special character sequences supported by the
                   **status-left** option.  If no _shell-command_ is given, the
                   current pipe (if any) is closed.
    
                   **-I** and **-O** specify which of the _shell-command_ output
                   streams are connected to the pane: with **-I** stdout is
                   connected (so anything _shell-command_ prints is written to
                   the pane as if it were typed); with **-O** stdin is connected
                   (so any output in the pane is piped to _shell-command_).
                   Both may be used together and if neither are specified, **-O**
                   is used.
    
                   The **-o** option only opens a new pipe if no previous pipe
                   exists, allowing a pipe to be toggled with a single key,
                   for example:
    
                         bind-key C-p pipe-pane -o 'cat >>~/output.#I-#P'
    
           **previous-layout**[**-t** _target-window_]
                         (alias: **prevl**)
                   Move to the previous layout in the session.
    
           **previous-window**[**-a**] [**-t** _target-session_]
                         (alias: **prev**)
                   Move to the previous window in the session.  With **-a** , move
                   to the previous window with an alert.
    
           **rename-window**[**-t** _target-window_] _new-name_
                         (alias: **renamew**)
                   Rename the current window, or the window at _target-window_
                   if specified, to _new-name_.
    
           **resize-pane**[**-DLMRTUZ**] [**-t** _target-pane_] [**-x** _width_] [**-y** _height_]
                   [_adjustment_]
                         (alias: **resizep**)
                   Resize a pane, up, down, left or right by _adjustment_ with
                   **-U** , **-D** , **-L** or **-R** , or to an absolute size with **-x** or **-y**.
                   The _adjustment_ is given in lines or columns (the default
                   is 1); **-x** and **-y** may be a given as a number of lines or
                   columns or followed by ‘%’ for a percentage of the window
                   size (for example ‘-x 10%’).  With **-Z** , the active pane is
                   toggled between zoomed (occupying the whole of the window)
                   and unzoomed (its normal position in the layout).
    
                   **-M** begins mouse resizing (only valid if bound to a mouse
                   key binding, see “MOUSE SUPPORT”).
    
                   **-T** trims all lines below the current cursor position and
                   moves lines out of the history to replace them.
    
           **resize-window**[**-aADLRU**] [**-t** _target-window_] [**-x** _width_] [**-y** _height_]
                   [_adjustment_]
                         (alias: **resizew**)
                   Resize a window, up, down, left or right by _adjustment_
                   with **-U** , **-D** , **-L** or **-R** , or to an absolute size with **-x** or
                   **-y**.  The _adjustment_ is given in lines or cells (the
                   default is 1).  **-A** sets the size of the largest session
                   containing the window; **-a** the size of the smallest.  This
                   command will automatically set **window-size** to manual in
                   the window options.
    
           **respawn-pane**[**-k**] [**-c** _start-directory_] [**-e** _environment_] [**-t**
                   _target-pane_] [_shell-command_ [_argument ..._]]
                         (alias: **respawnp**)
                   Reactivate a pane in which the command has exited (see the
                   **remain-on-exit** window option).  If _shell-command_ is not
                   given, the command used when the pane was created or last
                   respawned is executed.  The pane must be already inactive,
                   unless **-k** is given, in which case any existing command is
                   killed.  **-c** specifies a new working directory for the
                   pane.  The **-e** option has the same meaning as for the
                   **new-window** command.
    
           **respawn-window**[**-k**] [**-c** _start-directory_] [**-e** _environment_] [**-t**
                   _target-window_] [_shell-command_ [_argument ..._]]
                         (alias: **respawnw**)
                   Reactivate a window in which the command has exited (see
                   the **remain-on-exit** window option).  If _shell-command_ is
                   not given, the command used when the window was created or
                   last respawned is executed.  The window must be already
                   inactive, unless **-k** is given, in which case any existing
                   command is killed.  **-c** specifies a new working directory
                   for the window.  The **-e** option has the same meaning as for
                   the **new-window** command.
    
           **rotate-window**[**-DUZ**] [**-t** _target-window_]
                         (alias: **rotatew**)
                   Rotate the positions of the panes within a window, either
                   upward (numerically lower) with **-U** or downward
                   (numerically higher).  **-Z** keeps the window zoomed if it
                   was zoomed.
    
           **select-layout**[**-Enop**] [**-t** _target-pane_] [_layout-name_]
                         (alias: **selectl**)
                   Choose a specific layout for a window.  If _layout-name_ is
                   not given, the last preset layout used (if any) is
                   reapplied.  **-n** and **-p** are equivalent to the **next-layout**
                   and **previous-layout** commands.  **-o** applies the last set
                   layout if possible (undoes the most recent layout change).
                   **-E** spreads the current pane and any panes next to it out
                   evenly.
    
           **select-pane**[**-DdeLlMmRUZ**] [**-T** _title_] [**-t** _target-pane_]
                         (alias: **selectp**)
                   Make pane _target-pane_ the active pane in its window.  If
                   one of **-D** , **-L** , **-R** , or **-U** is used, respectively the pane
                   below, to the left, to the right, or above the target pane
                   is used.  **-Z** keeps the window zoomed if it was zoomed.  **-l**
                   is the same as using the **last-pane** command.  **-e** enables or
                   **-d** disables input to the pane.  **-T** sets the pane title.
    
                   **-m** and **-M** are used to set and clear the _marked pane_.
                   There is one marked pane at a time, setting a new marked
                   pane clears the last.  The marked pane is the default
                   target for **-s** to **join-pane** , **move-pane** , **swap-pane** and
                   **swap-window**.
    
           **select-window**[**-lnpT**] [**-t** _target-window_]
                         (alias: **selectw**)
                   Select the window at _target-window_.  **-l** , **-n** and **-p** are
                   equivalent to the **last-window** , **next-window** and
                   **previous-window** commands.  If **-T** is given and the selected
                   window is already the current window, the command behaves
                   like **last-window**.
    
           **split-window**[**-bdfhIvPZ**] [**-c** _start-directory_] [**-e** _environment_] [**-F**
                   _format_] [**-l** _size_] [**-t** _target-pane_] [_shell-command_
                   [_argument ..._]]
                         (alias: **splitw**)
                   Create a new pane by splitting _target-pane_ : **-h** does a
                   horizontal split and **-v** a vertical split; if neither is
                   specified, **-v** is assumed.  The **-l** option specifies the
                   size of the new pane in lines (for vertical split) or in
                   columns (for horizontal split); _size_ may be followed by
                   ‘%’ to specify a percentage of the available space.  The
                   **-b** option causes the new pane to be created to the left of
                   or above _target-pane_.  The **-f** option creates a new pane
                   spanning the full window height (with **-h**) or full window
                   width (with **-v**), instead of splitting the active pane.  **-Z**
                   zooms if the window is not zoomed, or keeps it zoomed if
                   already zoomed.
    
                   An empty _shell-command_ ('') will create a pane with no
                   command running in it.  Output can be sent to such a pane
                   with the **display-message** command.  The **-I** flag (if
                   _shell-command_ is not specified or empty) will create an
                   empty pane and forward any output from stdin to it.  For
                   example:
    
                         $ make 2>&1|tmux splitw -dI &
    
                   All other options have the same meaning as for the
                   **new-window** command.
    
           **swap-pane**[**-dDUZ**] [**-s** _src-pane_] [**-t** _dst-pane_]
                         (alias: **swapp**)
                   Swap two panes.  If **-U** is used and no source pane is
                   specified with **-s** , _dst-pane_ is swapped with the previous
                   pane (before it numerically); **-D** swaps with the next pane
                   (after it numerically).  **-d** instructs **tmux** not to change
                   the active pane and **-Z** keeps the window zoomed if it was
                   zoomed.
    
                   If **-s** is omitted and a marked pane is present (see
                   **select-pane -m**), the marked pane is used rather than the
                   current pane.
    
           **swap-window**[**-d**] [**-s** _src-window_] [**-t** _dst-window_]
                         (alias: **swapw**)
                   This is similar to **link-window** , except the source and
                   destination windows are swapped.  It is an error if no
                   window exists at _src-window_.  If **-d** is given, the new
                   window does not become the current window.
    
                   If **-s** is omitted and a marked pane is present (see
                   **select-pane -m**), the window containing the marked pane is
                   used rather than the current window.
    
           **unlink-window**[**-k**] [**-t** _target-window_]
                         (alias: **unlinkw**)
                   Unlink _target-window_.  Unless **-k** is given, a window may be
                   unlinked only if it is linked to multiple sessions -
                   windows may not be linked to no sessions; if **-k** is
                   specified and the window is linked to only one session, it
                   is unlinked and destroyed.
    


## KEY BINDINGS



           **tmux** allows a command to be bound to most keys, with or without a
           prefix key.  When specifying keys, most represent themselves (for
           example ‘A’ to ‘Z’).  Ctrl keys may be prefixed with ‘C-’ or ‘^’,
           Shift keys with ‘S-’ and Alt (meta) with ‘M-’.  In addition, the
           following special key names are accepted: _Up_ , _Down_ , _Left_ , _Right_ ,
           _BSpace_ , _BTab_ , _DC_ (Delete), _End_ , _Enter_ , _Escape_ , _F1_ to _F12_ , _Home_ , _IC_
           (Insert), _NPage/PageDown/PgDn_ , _PPage/PageUp/PgUp_ , _Space_ , and _Tab_.
           Note that to bind the ‘"’ or ‘'’ keys, quotation marks are
           necessary, for example:
    
                 bind-key '"' split-window
                 bind-key "'" new-window
    
           A command bound to the _Any_ key will execute for all keys which do
           not have a more specific binding.
    
           Commands related to key bindings are as follows:
    
           **bind-key**[**-nr**] [**-N** _note_] [**-T** _key-table_] _key_ [_command_ [_argument_
                   _..._]]
                         (alias: **bind**)
                   Bind key _key_ to _command_.  Keys are bound in a key table.
                   By default (without -T), the key is bound in the _prefix_
                   key table.  This table is used for keys pressed after the
                   prefix key (for example, by default ‘c’ is bound to
                   **new-window** in the _prefix_ table, so ‘C-b c’ creates a new
                   window).  The _root_ table is used for keys pressed without
                   the prefix key: binding ‘c’ to **new-window** in the _root_
                   table (not recommended) means a plain ‘c’ will create a
                   new window.  **-n** is an alias for **-T** _root_.  Keys may also be
                   bound in custom key tables and the **switch-client -T**
                   command used to switch to them from a key binding.  The **-r**
                   flag indicates this key may repeat, see the
                   **initial-repeat-time** and **repeat-time** options.  **-N** attaches
                   a note to the key (shown with **list-keys -N**), which can be
                   cleared by passing an empty string.  The **-r** and **-N** flags
                   can be used without _command_ to alter an existing binding.
    
                   To view the default bindings and possible commands, see
                   the **list-keys** command.
    
           **list-keys**[**-1aN**] [**-P** _prefix-string_] [**-T** _key-table_] [_key_]
                         (alias: **lsk**)
                   List key bindings.  There are two forms: the default lists
                   keys as **bind-key** commands; **-N** lists only keys with
                   attached notes and shows only the key and note for each
                   key.
    
                   With the default form, all key tables are listed by
                   default.  **-T** lists only keys in _key-table_.
    
                   With the **-N** form, only keys in the _root_ and _prefix_ key
                   tables are listed by default; **-T** also lists only keys in
                   _key-table_.  **-P** specifies a prefix to print before each key
                   and **-1** lists only the first matching key.  **-a** lists the
                   command for keys that do not have a note rather than
                   skipping them.
    
           **send-keys**[**-FHKlMRX**] [**-c** _target-client_] [**-N** _repeat-count_] [**-t**
                   _target-pane_] [_key ..._]
                         (alias: **send**)
                   Send a key or keys to a window or client.  Each argument
                   _key_ is the name of the key (such as ‘C-a’ or ‘NPage’) to
                   send; if the string is not recognised as a key, it is sent
                   as a series of characters.  If **-K** is given, keys are sent
                   to _target-client_ , so they are looked up in the client's
                   key table, rather than to _target-pane_.  All arguments are
                   sent sequentially from first to last.  If no keys are
                   given and the command is bound to a key, then that key is
                   used.
    
                   The **-l** flag disables key name lookup and processes the
                   keys as literal UTF-8 characters.  The **-H** flag expects
                   each key to be a hexadecimal number for an ASCII
                   character.
    
                   The **-R** flag causes the terminal state to be reset.
    
                   **-M** passes through a mouse event (only valid if bound to a
                   mouse key binding, see “MOUSE SUPPORT”).
    
                   **-X** is used to send a command into copy mode - see the
                   “WINDOWS AND PANES” section.  **-N** specifies a repeat count
                   and **-F** expands formats in arguments where appropriate.
    
           **send-prefix**[**-2**] [**-t** _target-pane_]
                   Send the prefix key, or with **-2** the secondary prefix key,
                   to a window as if it was pressed.
    
           **unbind-key**[**-anq**] [**-T** _key-table_] _key_
                         (alias: **unbind**)
                   Unbind the command bound to _key_.  **-n** and **-T** are the same
                   as for **bind-key**.  If **-a** is present, all key bindings are
                   removed.  The **-q** option prevents errors being returned.
    


## OPTIONS



           The appearance and behaviour of **tmux** may be modified by changing
           the value of various options.  Each option belongs to one or
           multiple scopes (_server_ , _session_ , _window_ , and _pane_) and has a type
           (_string_ , _number_ , _key_ , _colour_ , _flag_ , _choice_ , or _command_). Values of
           _flag_ -type options may be one of: **1** , **on** , **yes** , **0** , **off** , or **no** ; for
           possible _choice_ values, see the respective option; for _key_
           options, the “KEY BINDINGS” section; and for _colour_ options, the
           “STYLES” section.
    
           The **tmux** server has a set of global server options which do not
           apply to any particular window or session or pane.  These are
           altered with the **set-option -s** command, or displayed with the
           **show-options -s** command.
    
           In addition, each individual session may have a set of session
           options, and there is a separate set of global session options.
           Sessions which do not have a particular option configured inherit
           the value from the global session options.  Session options are
           set or unset with the **set-option** command and may be listed with
           the **show-options** command.  The available server and session
           options are listed under the **set-option** command.
    
           Similarly, a set of window options is attached to each window and
           a set of pane options to each pane.  Pane options inherit from
           window options.  This means any pane option may be set as a window
           option to apply the option to all panes in the window without the
           option set, for example these commands will set the background
           colour to red for all panes except pane 0:
    
                 set -w window-style bg=red
                 set -pt:.0 window-style bg=blue
    
           There is also a set of global window options from which any unset
           window or pane options are inherited.  Window and pane options are
           altered with **set-option -w** and **-p** commands and displayed with
           **show-option -w** and **-p**.
    
           **tmux** also supports user options which are prefixed with a ‘@’.
           User options may have any name, so long as they are prefixed with
           ‘@’, and be set to any string.  For example:
    
                 $ tmux set -wq @foo "abc123"
                 $ tmux show -wv @foo
                 abc123
    
           Options are managed with these commands:
    
           **set-option**[**-aFgopqsuUw**] [**-t** _target-pane_] _option_ [_value_]
                         (alias: **set**)
                   Set a pane option with **-p** , a window option with **-w** , a
                   server option with **-s** , otherwise a session option.  If the
                   option is not a user option, **-w** or **-s** may be unnecessary -
                   **tmux** will infer the scope from the option name, assuming
                   **-w** for pane options.  If **-g** is given, the global session
                   or window option is set.
    
                   **-F** expands formats in the option value.  The **-u** flag
                   unsets an option, so a session inherits the option from
                   the global options (or with **-g** , restores a global option
                   to the default).  **-U** unsets an option (like **-u**) but if the
                   option is a pane option also unsets the option on any
                   panes in the window.  _value_ depends on the option and its
                   type and can be omitted for flag and choice options to
                   toggle its value (choice options toggle between the first
                   two choices).
    
                   The **-o** flag prevents setting an option that is already set
                   and the **-q** flag suppresses errors about unknown or
                   ambiguous options.
    
                   With **-a** , and if the option expects a string or a style,
                   _value_ is appended to the existing setting.  For example:
    
                         set -g status-left "foo"
                         set -ag status-left "bar"
    
                   Will result in ‘foobar’.  And:
    
                         set -g status-style "bg=red"
                         set -ag status-style "fg=blue"
    
                   Will result in a red background _and_ blue foreground.
                   Without **-a** , the result would be the default background and
                   a blue foreground.
    
           **show-options**[**-AgHpqsvw**] [**-t** _target-pane_] [_option_]
                         (alias: **show**)
                   Show the pane options (or a single option if _option_ is
                   provided) with **-p** , the window options with **-w** , the server
                   options with **-s** , otherwise the session options.  If the
                   option is not a user option, **-w** or **-s** may be unnecessary -
                   **tmux** will infer the scope from the option name, assuming
                   **-w** for pane options.  Global session or window options are
                   listed if **-g** is used.  **-v** shows only the option value, not
                   the name.  If **-q** is set, no error will be returned if
                   _option_ is unset.  **-H** includes hooks (omitted by default).
                   **-A** includes options inherited from a parent set of
                   options, such options are marked with an asterisk.
    
           Available server options are:
    
           **backspace** _key_
                   Set the key sent by **tmux** for backspace.
    
           **buffer-limit** _number_
                   Set the number of buffers; as new buffers are added to the
                   top of the stack, old ones are removed from the bottom if
                   necessary to maintain this maximum length.
    
           **command-alias[]**_name=value_
                   This is an array of custom aliases for commands.  If an
                   unknown command matches _name_ , it is replaced with _value_.
                   For example, after:
    
                         **set -s command-alias[100] zoom='resize-pane -Z'**
    
                   Using:
    
                         **zoom -t:.1**
    
                   Is equivalent to:
    
                         **resize-pane -Z -t:.1**
    
                   Note that aliases are expanded when a command is parsed
                   rather than when it is executed, so binding an alias with
                   **bind-key** will bind the expanded form.
    
           **codepoint-widths[]**_string_
                   An array option allowing widths of Unicode codepoints to
                   be overridden.  Note the new width applies to all clients.
                   Each entry is of the form _codepoint=width_ , where codepoint
                   may be a UTF-8 character or an identifier of the form
                   ‘U+number’ where the number is a hexadecimal number.
    
           **copy-command** _shell-command_
                   Give the command to pipe to if the **copy-pipe** copy mode
                   command is used without arguments.
    
           **default-client-command** _command_
                   Set the default command to run when tmux is called without
                   a command.  The default is **new-session**.
    
           **default-terminal** _terminal_
                   Set the default terminal for new windows created in this
                   session - the default value of the TERM environment
                   variable.  For **tmux** to work correctly, this _must_ be set to
                   ‘screen’, ‘tmux’ or a derivative of them.
    
           **escape-time** _time_
                   Set the time in milliseconds for which **tmux** waits after an
                   escape is input to determine if it is part of a function
                   or meta key sequences.
    
           **editor** _shell-command_
                   Set the command used when **tmux** runs an editor.
    
           **exit-empty**[**on** | **off**]
                   If enabled (the default), the server will exit when there
                   are no active sessions.
    
           **exit-unattached**[**on** | **off**]
                   If enabled, the server will exit when there are no
                   attached clients.
    
           **extended-keys**[**on** | **off** | **always**]
                   Controls how modified keys (keys pressed together with
                   Control, Meta, or Shift) are reported.  This is the
                   equivalent of the **modifyOtherKeys** _xterm_(1) resource.
    
                   When set to **on** , the program inside the pane can request
                   one of two modes: mode 1 which changes the sequence for
                   only keys which lack an existing well-known
                   representation; or mode 2 which changes the sequence for
                   all keys.  When set to **always** , modes 1 and 2 can still be
                   requested by applications, but mode 1 will be forced
                   instead of the standard mode.  When set to **off** , this
                   feature is disabled and only standard keys are reported.
    
                   **tmux** will always request extended keys itself if the
                   terminal supports them.  See also the **extkeys** feature for
                   the **terminal-features** option, the **extended-keys-format**
                   option and the **pane_key_mode** variable.
    
           **extended-keys-format**[**csi-u** | **xterm**]
                   Selects one of the two possible formats for reporting
                   modified keys to applications.  This is the equivalent of
                   the **formatOtherKeys** _xterm_(1) resource.  For example, C-S-a
                   will be reported as ‘^[[27;6;65~’ when set to **xterm** , and
                   as ‘^[[65;6u’ when set to **csi-u**.
    
           **focus-events**[**on** | **off**]
                   When enabled, focus events are requested from the terminal
                   if supported and passed through to applications running in
                   **tmux**.  Attached clients should be detached and attached
                   again after changing this option.
    
           **history-file** _path_
                   If not empty, a file to which **tmux** will write command
                   prompt history on exit and load it from on start.
    
           **input-buffer-size** _bytes_
                   Maximum of bytes allowed to read in escape and control
                   sequences.  Once reached, the sequence will be discarded.
    
           **message-limit** _number_
                   Set the number of error or information messages to save in
                   the message log for each client.
    
           **prompt-history-limit** _number_
                   Set the number of history items to save in the history
                   file for each type of command prompt.
    
           **set-clipboard**[**on** | **external** | **off**]
                   Attempt to set the terminal clipboard content using the
                   _xterm_(1) escape sequence, if there is an _Ms_ entry in the
                   _terminfo_(5) description (see the “TERMINFO EXTENSIONS”
                   section).
    
                   If set to **on** , **tmux** will both accept the escape sequence to
                   create a buffer and attempt to set the terminal clipboard.
                   If set to **external** , **tmux** will attempt to set the terminal
                   clipboard but ignore attempts by applications to set **tmux**
                   buffers.  If **off** , **tmux** will neither accept the clipboard
                   escape sequence nor attempt to set the clipboard.
    
                   Note that this feature needs to be enabled in _xterm_(1) by
                   setting the resource:
    
                         disallowedWindowOps: 20,21,SetXprop
    
                   Or changing this property from the _xterm_(1) interactive
                   menu when required.
    
           **terminal-features[]**_string_
                   Set terminal features for terminal types read from
                   _terminfo_(5).  **tmux** has a set of named terminal features.
                   Each will apply appropriate changes to the _terminfo_(5)
                   entry in use.
    
                   **tmux** can detect features for a few common terminals; this
                   option can be used to easily tell tmux about features
                   supported by terminals it cannot detect.  The
                   **terminal-overrides** option allows individual _terminfo_(5)
                   capabilities to be set instead, **terminal-features** is
                   intended for classes of functionality supported in a
                   standard way but not reported by _terminfo_(5).  Care must
                   be taken to configure this only with features the terminal
                   actually supports.
    
                   This is an array option where each entry is a colon-
                   separated string made up of a terminal type pattern
                   (matched using _glob_(7) patterns) followed by a list of
                   terminal features.  The available features are:
    
                   256     Supports 256 colours with the SGR escape
                           sequences.
    
                   clipboard
                           Allows setting the system clipboard.
    
                   ccolour
                           Allows setting the cursor colour.
    
                   cstyle  Allows setting the cursor style.
    
                   extkeys
                           Supports extended keys.
    
                   focus   Supports focus reporting.
    
                   hyperlinks
                           Supports OSC 8 hyperlinks.
    
                   ignorefkeys
                           Ignore function keys from _terminfo_(5) and use the
                           **tmux** internal set only.
    
                   margins
                           Supports DECSLRM margins.
    
                   mouse   Supports _xterm_(1) mouse sequences.
    
                   osc7    Supports the OSC 7 working directory extension.
    
                   overline
                           Supports the overline SGR attribute.
    
                   rectfill
                           Supports the DECFRA rectangle fill escape
                           sequence.
    
                   RGB     Supports RGB colour with the SGR escape sequences.
    
                   sixel   Supports SIXEL graphics.
    
                   strikethrough
                           Supports the strikethrough SGR escape sequence.
    
                   sync    Supports synchronized updates.
    
                   title   Supports _xterm_(1) title setting.
    
                   usstyle
                           Allows underscore style and colour to be set.
    
           **terminal-overrides[]**_string_
                   Allow terminal descriptions read using _terminfo_(5) to be
                   overridden.  Each entry is a colon-separated string made
                   up of a terminal type pattern (matched using _glob_(7)
                   patterns) and a set of _name=value_ entries.
    
                   For example, to set the ‘clear’ _terminfo_(5) entry to
                   ‘\e[H\e[2J’ for all terminal types matching ‘rxvt*’:
    
                         **rxvt*:clear=\e[H\e[2J**
    
                   The terminal entry value is passed through _strunvis_(3)
                   before interpretation.
    
           **user-keys[]**_key_
                   Set list of user-defined key escape sequences.  Each item
                   is associated with a key named ‘User0’, ‘User1’, and so
                   on.
    
                   For example:
    
                         set -s user-keys[0] "\e[5;30012~"
                         bind User0 resize-pane -L 3
    
           **variation-selector-always-wide**[**on** | **off**]
                   Always treat Unicode variation selector 16 as marking a
                   wide character.  This is a feature of some terminals as
                   part of their Unicode 14 support.
    
           Available session options are:
    
           **activity-action**[**any** | **none** | **current** | **other**]
                   Set action on window activity when **monitor-activity** is on.
                   **any** means activity in any window linked to a session
                   causes a bell or message (depending on **visual-activity**) in
                   the current window of that session, **none** means all
                   activity is ignored (equivalent to **monitor-activity** being
                   off), **current** means only activity in windows other than
                   the current window are ignored and **other** means activity in
                   the current window is ignored but not those in other
                   windows.
    
           **assume-paste-time** _milliseconds_
                   If keys are entered faster than one in _milliseconds_ , they
                   are assumed to have been pasted rather than typed and **tmux**
                   key bindings are not processed.  The default is one
                   millisecond and zero disables.
    
           **base-index** _index_
                   Set the base index from which an unused index should be
                   searched when a new window is created.  The default is
                   zero.
    
           **bell-action**[**any** | **none** | **current** | **other**]
                   Set action on a bell in a window when **monitor-bell** is on.
                   The values are the same as those for **activity-action**.
    
           **default-command** _shell-command_
                   Set the command used for new windows (if not specified
                   when the window is created) to _shell-command_ , which may be
                   any _sh_(1) command.  The default is an empty string, which
                   instructs **tmux** to create a login shell using the value of
                   the **default-shell** option.
    
           **default-shell** _path_
                   Specify the default shell.  This is used as the login
                   shell for new windows when the **default-command** option is
                   set to empty, and must be the full path of the executable.
                   When started **tmux** tries to set a default value from the
                   first suitable of the SHELL environment variable, the
                   shell returned by _getpwuid_(3), or _/bin/sh_.  This option
                   should be configured when **tmux** is used as a login shell.
    
           **default-size** _XxY_
                   Set the default size of new windows when the **window-size**
                   option is set to manual or when a session is created with
                   **new-session -d**.  The value is the width and height
                   separated by an ‘x’ character.  The default is 80x24.
    
           **destroy-unattached**[**off** | **on** | **keep-last** | **keep-group**]
                   If **on** , destroy the session after the last client has
                   detached.  If **off**(the default), leave the session
                   orphaned.  If **keep-last** , destroy the session only if it is
                   in a group and has other sessions in that group.  If
                   **keep-group** , destroy the session unless it is in a group
                   and is the only session in that group.
    
           **detach-on-destroy**[**off** | **on** | **no-detached** | **previous** | **next**]
                   If **on**(the default), the client is detached when the
                   session it is attached to is destroyed.  If **off** , the
                   client is switched to the most recently active of the
                   remaining sessions.  If **no-detached** , the client is
                   detached only if there are no detached sessions; if
                   detached sessions exist, the client is switched to the
                   most recently active.  If **previous** or **next** , the client is
                   switched to the previous or next session in alphabetical
                   order.
    
           **display-panes-active-colour** _colour_
                   Set the colour used by the **display-panes** command to show
                   the indicator for the active pane.
    
           **display-panes-colour** _colour_
                   Set the colour used by the **display-panes** command to show
                   the indicators for inactive panes.
    
           **display-panes-time** _time_
                   Set the time in milliseconds for which the indicators
                   shown by the **display-panes** command appear.
    
           **display-time** _time_
                   Set the amount of time for which status line messages and
                   other on-screen indicators are displayed.  If set to 0,
                   messages and indicators are displayed until a key is
                   pressed.  _time_ is in milliseconds.
    
           **history-limit** _lines_
                   Set the maximum number of lines held in window history.
                   This setting applies only to new windows - existing window
                   histories are not resized and retain the limit at the
                   point they were created.
    
           **initial-repeat-time** _time_
                   Set the time in milliseconds for the initial repeat when a
                   key is bound with the **-r** flag.  This allows multiple
                   commands to be entered without pressing the prefix key
                   again.  See also the **repeat-time** option.  If
                   **initial-repeat-time** is zero, **repeat-time** is used for the
                   first key press.
    
           **key-table** _key-table_
                   Set the default key table to _key-table_ instead of _root_.
    
           **lock-after-time** _number_
                   Lock the session (like the **lock-session** command) after
                   _number_ seconds of inactivity.  The default is not to lock
                   (set to 0).
    
           **lock-command** _shell-command_
                   Command to run when locking each client.  The default is
                   to run _lock_(1) with **-np**.
    
           **menu-style** _style_
                   Set the menu style.  See the “STYLES” section on how to
                   specify _style_.
    
           **menu-selected-style** _style_
                   Set the selected menu item style.  See the “STYLES”
                   section on how to specify _style_.
    
           **menu-border-style** _style_
                   Set the menu border style.  See the “STYLES” section on
                   how to specify _style_.
    
           **menu-border-lines** _type_
                   Set the type of characters used for drawing menu borders.
                   See **popup-border-lines** for possible values for
                   _border-lines_.
    
           **message-command-style** _style_
                   Set status line message command style.  This is used for
                   the command prompt with _vi_(1) keys when in command mode.
                   For how to specify _style_ , see the “STYLES” section.
    
           **message-line**[**0** | **1** | **2** | **3** | **4**]
                   Set line on which status line messages and the command
                   prompt are shown.
    
           **message-style** _style_
                   Set status line message style.  This is used for messages
                   and for the command prompt.  For how to specify _style_ , see
                   the “STYLES” section.
    
           **mouse**[**on** | **off**]
                   If on, **tmux** captures the mouse and allows mouse events to
                   be bound as key bindings.  See the “MOUSE SUPPORT” section
                   for details.
    
           **prefix** _key_
                   Set the key accepted as a prefix key.  In addition to the
                   standard keys described under “KEY BINDINGS”, **prefix** can
                   be set to the special key ‘None’ to set no prefix.
    
           **prefix2** _key_
                   Set a secondary key accepted as a prefix key.  Like
                   **prefix** , **prefix2** can be set to ‘None’.
    
           **prefix-timeout** _time_
                   Set the time in milliseconds for which **tmux** waits after
                   **prefix** is input before dismissing it.  Can be set to zero
                   to disable any timeout.
    
           **prompt-cursor-colour** _colour_
                   Set the colour of the cursor in the command prompt.
    
           **prompt-cursor-style** _style_
                   Set the style of the cursor in the command prompt.  See
                   the **cursor-style** options for available styles.
    
           **renumber-windows**[**on** | **off**]
                   If on, when a window is closed in a session, automatically
                   renumber the other windows in numerical order.  This
                   respects the **base-index** option if it has been set.  If
                   off, do not renumber the windows.
    
           **repeat-time** _time_
                   Allow multiple commands to be entered without pressing the
                   prefix key again in the specified _time_ milliseconds (the
                   default is 500).  Whether a key repeats may be set when it
                   is bound using the **-r** flag to **bind-key**.  Repeat is enabled
                   for the default keys bound to the **resize-pane** command.
                   See also the **initial-repeat-time** option.
    
           **set-titles**[**on** | **off**]
                   Attempt to set the client terminal title using the _tsl_ and
                   _fsl terminfo_(5) entries if they exist.  **tmux** automatically
                   sets these to the \e]0;...\007 sequence if the terminal
                   appears to be _xterm_(1).  This option is off by default.
    
           **set-titles-string** _string_
                   String used to set the client terminal title if **set-titles**
                   is on.  Formats are expanded, see the “FORMATS” section.
    
           **silence-action**[**any** | **none** | **current** | **other**]
                   Set action on window silence when **monitor-silence** is on.
                   The values are the same as those for **activity-action**.
    
           **status**[**off** | **on** | **2** | **3** | **4** | **5**]
                   Show or hide the status line or specify its size.  Using
                   **on** gives a status line one row in height; **2** , **3** , **4** or **5**
                   more rows.
    
           **status-format[]**_format_
                   Specify the format to be used for each line of the status
                   line.  The default builds the top status line from the
                   various individual status options below.
    
           **status-interval** _interval_
                   Update the status line every _interval_ seconds.  By
                   default, updates will occur every 15 seconds.  A setting
                   of zero disables redrawing at interval.
    
           **status-justify**[**left** | **centre** | **right** | **absolute-centre**]
                   Set the position of the window list in the status line:
                   left, centre or right.  centre puts the window list in the
                   relative centre of the available free space; absolute-
                   centre uses the centre of the entire horizontal space.
    
           **status-keys**[**vi** | **emacs**]
                   Use vi or emacs-style key bindings in the status line, for
                   example at the command prompt.  The default is emacs,
                   unless the VISUAL or EDITOR environment variables are set
                   and contain the string ‘vi’.
    
           **status-left** _string_
                   Display _string_ (by default the session name) to the left
                   of the status line.  _string_ will be passed through
                   _strftime_(3).  Also see the “FORMATS” and “STYLES”
                   sections.
    
                   For details on how the names and titles can be set see the
                   “NAMES AND TITLES” section.
    
                   Examples are:
    
                         #(sysctl vm.loadavg)
                         #[fg=yellow,bold]#(apm -l)%%#[default] [#S]
    
                   The default is ‘[#S] ’.
    
           **status-left-length** _length_
                   Set the maximum _length_ of the left component of the status
                   line.  The default is 10.
    
           **status-left-style** _style_
                   Set the style of the left part of the status line.  For
                   how to specify _style_ , see the “STYLES” section.
    
           **status-position**[**top** | **bottom**]
                   Set the position of the status line.
    
           **status-right** _string_
                   Display _string_ to the right of the status line.  By
                   default, the current pane title in double quotes, the date
                   and the time are shown.  As with **status-left** , _string_ will
                   be passed to _strftime_(3) and character pairs are replaced.
    
           **status-right-length** _length_
                   Set the maximum _length_ of the right component of the
                   status line.  The default is 40.
    
           **status-right-style** _style_
                   Set the style of the right part of the status line.  For
                   how to specify _style_ , see the “STYLES” section.
    
           **status-style** _style_
                   Set status line style.  For how to specify _style_ , see the
                   “STYLES” section.
    
           **update-environment[]**_variable_
                   Set list of environment variables to be copied into the
                   session environment when a new session is created or an
                   existing session is attached.  Any variables that do not
                   exist in the source environment are set to be removed from
                   the session environment (as if **-r** was given to the
                   **set-environment** command).
    
           **visual-activity**[**on** | **off** | **both**]
                   If on, display a message instead of sending a bell when
                   activity occurs in a window for which the **monitor-activity**
                   window option is enabled.  If set to both, a bell and a
                   message are produced.
    
           **visual-bell**[**on** | **off** | **both**]
                   If on, a message is shown on a bell in a window for which
                   the **monitor-bell** window option is enabled instead of it
                   being passed through to the terminal (which normally makes
                   a sound).  If set to both, a bell and a message are
                   produced.  Also see the **bell-action** option.
    
           **visual-silence**[**on** | **off** | **both**]
                   If **monitor-silence** is enabled, prints a message after the
                   interval has expired on a given window instead of sending
                   a bell.  If set to both, a bell and a message are
                   produced.
    
           **word-separators** _string_
                   Sets the session's conception of what characters are
                   considered word separators, for the purposes of the next
                   and previous word commands in copy mode.
    
           Available window options are:
    
           **aggressive-resize**[**on** | **off**]
                   Aggressively resize the chosen window.  This means that
                   **tmux** will resize the window to the size of the smallest or
                   largest session (see the **window-size** option) for which it
                   is the current window, rather than the session to which it
                   is attached.  The window may resize when the current
                   window is changed on another session; this option is good
                   for full-screen programs which support SIGWINCH and poor
                   for interactive programs such as shells.
    
           **automatic-rename**[**on** | **off**]
                   Control automatic window renaming.  When this setting is
                   enabled, **tmux** will rename the window automatically using
                   the format specified by **automatic-rename-format**.  This
                   flag is automatically disabled for an individual window
                   when a name is specified at creation with **new-window** or
                   **new-session** , or later with **rename-window** , or with a
                   terminal escape sequence.  It may be switched off globally
                   with:
    
                         set-option -wg automatic-rename off
    
           **automatic-rename-format** _format_
                   The format (see “FORMATS”) used when the **automatic-rename**
                   option is enabled.
    
           **clock-mode-colour** _colour_
                   Set clock colour.
    
           **clock-mode-style**[**12** | **24**]
                   Set clock hour format.
    
           **fill-character** _character_
                   Set the character used to fill areas of the terminal
                   unused by a window.
    
           **main-pane-height** _height_
           **main-pane-width** _width_
                   Set the width or height of the main (left or top) pane in
                   the **main-horizontal** , **main-horizontal-mirrored** ,
                   **main-vertical** , or **main-vertical-mirrored** layouts.  If
                   suffixed by ‘%’, this is a percentage of the window size.
    
           **copy-mode-match-style** _style_
                   Set the style of search matches in copy mode.  For how to
                   specify _style_ , see the “STYLES” section.
    
           **copy-mode-mark-style** _style_
                   Set the style of the line containing the mark in copy
                   mode.  For how to specify _style_ , see the “STYLES” section.
    
           **copy-mode-current-match-style** _style_
                   Set the style of the current search match in copy mode.
                   For how to specify _style_ , see the “STYLES” section.
    
           **copy-mode-position-format** _format_
                   Format of the position indicator in copy mode.
    
           **mode-keys**[**vi** | **emacs**]
                   Use vi or emacs-style key bindings in copy mode.  The
                   default is emacs, unless VISUAL or EDITOR contains ‘vi’.
    
           **copy-mode-position-style** _style_
                   Set the style of the position indicator in copy mode.  For
                   how to specify _style_ , see the “STYLES” section.
    
           **copy-mode-selection-style** _style_
                   Set the style of the selection in copy mode.  For how to
                   specify _style_ , see the “STYLES” section.
    
           **mode-style** _style_
                   Set window modes style.  For how to specify _style_ , see the
                   “STYLES” section.
    
           **monitor-activity**[**on** | **off**]
                   Monitor for activity in the window.  Windows with activity
                   are highlighted in the status line.
    
           **monitor-bell**[**on** | **off**]
                   Monitor for a bell in the window.  Windows with a bell are
                   highlighted in the status line.
    
           **monitor-silence**[**interval**]
                   Monitor for silence (no activity) in the window within
                   **interval** seconds.  Windows that have been silent for the
                   interval are highlighted in the status line.  An interval
                   of zero disables the monitoring.
    
           **other-pane-height** _height_
                   Set the height of the other panes (not the main pane) in
                   the **main-horizontal** and **main-horizontal-mirrored** layouts.
                   If this option is set to 0 (the default), it will have no
                   effect.  If both the **main-pane-height** and
                   **other-pane-height** options are set, the main pane will grow
                   taller to make the other panes the specified height, but
                   will never shrink to do so.  If suffixed by ‘%’, this is a
                   percentage of the window size.
    
           **other-pane-width** _width_
                   Like **other-pane-height** , but set the width of other panes
                   in the **main-vertical** and **main-vertical-mirrored** layouts.
    
           **pane-active-border-style** _style_
                   Set the pane border style for the currently active pane.
                   For how to specify _style_ , see the “STYLES” section.
                   Attributes are ignored.
    
           **pane-base-index** _index_
                   Like **base-index** , but set the starting index for pane
                   numbers.
    
           **pane-border-format** _format_
                   Set the text shown in pane border status lines.
    
           **pane-border-indicators**[**off** | **colour** | **arrows** | **both**]
                   Indicate active pane by colouring only half of the border
                   in windows with exactly two panes, by displaying arrow
                   markers, by drawing both or neither.
    
           **pane-border-lines** _type_
                   Set the type of characters used for drawing pane borders.
                   _type_ may be one of:
    
                   single  single lines using ACS or UTF-8 characters
    
                   double  double lines using UTF-8 characters
    
                   heavy   heavy lines using UTF-8 characters
    
                   simple  simple ASCII characters
    
                   number  the pane number
    
                   ‘double’ and ‘heavy’ will fall back to standard ACS line
                   drawing when UTF-8 is not supported.
    
           **pane-border-status**[**off** | **top** | **bottom**]
                   Turn pane border status lines off or set their position.
    
           **pane-border-style** _style_
                   Set the pane border style for panes aside from the active
                   pane.  For how to specify _style_ , see the “STYLES” section.
                   Attributes are ignored.
    
           **popup-style** _style_
                   Set the popup style.  See the “STYLES” section on how to
                   specify _style_.  Attributes are ignored.
    
           **popup-border-style** _style_
                   Set the popup border style.  See the “STYLES” section on
                   how to specify _style_.  Attributes are ignored.
    
           **popup-border-lines** _type_
                   Set the type of characters used for drawing popup borders.
                   _type_ may be one of:
    
                   single  single lines using ACS or UTF-8 characters
                           (default)
    
                   rounded
                           variation of single with rounded corners using
                           UTF-8 characters
    
                   double  double lines using UTF-8 characters
    
                   heavy   heavy lines using UTF-8 characters
    
                   simple  simple ASCII characters
    
                   padded  simple ASCII space character
    
                   none    no border
    
                   ‘double’ and ‘heavy’ will fall back to standard ACS line
                   drawing when UTF-8 is not supported.
    
           **pane-scrollbars**[**off** | **modal** | **on**]
                   When enabled, a character based scrollbar appears on the
                   left or right of each pane.  A filled section of the
                   scrollbar, known as the ‘slider’, represents the position
                   and size of the visible part of the pane content.
    
                   If set to **on** the scrollbar is visible all the time.  If
                   set to **modal** the scrollbar only appears when the pane is
                   in copy mode or view mode.  When the scrollbar is visible,
                   the pane is narrowed by the width of the scrollbar and the
                   text in the pane is reflowed.  If set to **modal** , the pane
                   is narrowed only when the scrollbar is visible.
    
                   See also **pane-scrollbars-style**.
    
           **pane-scrollbars-style** _style_
                   Set the scrollbars style.  For how to specify _style_ , see
                   the “STYLES” section.  The foreground colour is used for
                   the slider, the background for the rest of the scrollbar.
                   The _width_ attribute sets the width of the scrollbar and
                   the _pad_ attribute the padding between the scrollbar and
                   the pane.  Other attributes are ignored.
    
           **pane-scrollbars-position**[**left** | **right**]
                   Sets which side of the pane to display pane scrollbars on.
    
           **window-status-activity-style** _style_
                   Set status line style for windows with an activity alert.
                   For how to specify _style_ , see the “STYLES” section.
    
           **window-status-bell-style** _style_
                   Set status line style for windows with a bell alert.  For
                   how to specify _style_ , see the “STYLES” section.
    
           **window-status-current-format** _string_
                   Like _window-status-format_ , but is the format used when the
                   window is the current window.
    
           **window-status-current-style** _style_
                   Set status line style for the currently active window.
                   For how to specify _style_ , see the “STYLES” section.
    
           **window-status-format** _string_
                   Set the format in which the window is displayed in the
                   status line window list.  See the “FORMATS” and “STYLES”
                   sections.
    
           **window-status-last-style** _style_
                   Set status line style for the last active window.  For how
                   to specify _style_ , see the “STYLES” section.
    
           **window-status-separator** _string_
                   Sets the separator drawn between windows in the status
                   line.  The default is a single space character.
    
           **window-status-style** _style_
                   Set status line style for a single window.  For how to
                   specify _style_ , see the “STYLES” section.
    
           **window-size** _largest_ | _smallest_ | _manual_ | _latest_
                   Configure how **tmux** determines the window size.  If set to
                   _largest_ , the size of the largest attached session is used;
                   if _smallest_ , the size of the smallest.  If _manual_ , the
                   size of a new window is set from the **default-size** option
                   and windows are resized automatically.  With _latest_ , **tmux**
                   uses the size of the client that had the most recent
                   activity.  See also the **resize-window** command and the
                   **aggressive-resize** option.
    
           **wrap-search**[**on** | **off**]
                   If this option is set, searches will wrap around the end
                   of the pane contents.  The default is on.
    
           Available pane options are:
    
           **allow-passthrough**[**on** | **off** | **all**]
                   Allow programs in the pane to bypass **tmux** using a terminal
                   escape sequence (\ePtmux;...\e\\).  If set to **on** ,
                   passthrough sequences will be allowed only if the pane is
                   visible.  If set to **all** , they will be allowed even if the
                   pane is invisible.
    
           **allow-rename**[**on** | **off**]
                   Allow programs in the pane to change the window name using
                   a terminal escape sequence (\ek...\e\\).
    
           **allow-set-title**[**on** | **off**]
                   Allow programs in the pane to change the title using the
                   terminal escape sequences (\e]2;...\e\\ or \e]0;...\e\\).
    
           **alternate-screen**[**on** | **off**]
                   This option configures whether programs running inside the
                   pane may use the terminal alternate screen feature, which
                   allows the _smcup_ and _rmcup terminfo_(5) capabilities.  The
                   alternate screen feature preserves the contents of the
                   window when an interactive application starts and restores
                   it on exit, so that any output visible before the
                   application starts reappears unchanged after it exits.
    
           **cursor-colour** _colour_
                   Set the colour of the cursor.
    
           **cursor-style** _style_
                   Set the style of the cursor.  Available styles are:
                   **default** , **blinking-block** , **block** , **blinking-underline** ,
                   **underline** , **blinking-bar** , **bar**.
    
           **pane-colours[]**_colour_
                   The default colour palette.  Each entry in the array
                   defines the colour **tmux** uses when the colour with that
                   index is requested.  The index may be from zero to 255.
    
           **remain-on-exit**[**on** | **off** | **failed**]
                   A pane with this flag set is not destroyed when the
                   program running in it exits.  If set to **failed** , then only
                   when the program exit status is not zero.  The pane may be
                   reactivated with the **respawn-pane** command.
    
           **remain-on-exit-format** _string_
                   Set the text shown at the bottom of exited panes when
                   **remain-on-exit** is enabled.
    
           **scroll-on-clear**[**on** | **off**]
                   When the entire screen is cleared and this option is on,
                   scroll the contents of the screen into history before
                   clearing it.
    
           **synchronize-panes**[**on** | **off**]
                   Duplicate input to all other panes in the same window
                   where this option is also on (only for panes that are not
                   in any mode).
    
           **window-active-style** _style_
                   Set the pane style when it is the active pane.  For how to
                   specify _style_ , see the “STYLES” section.
    
           **window-style** _style_
                   Set the pane style.  For how to specify _style_ , see the
                   “STYLES” section.
    


## HOOKS



           **tmux** allows commands to run on various triggers, called _hooks_.
           Most **tmux** commands have an _after_ hook and there are a number of
           hooks not associated with commands.
    
           Hooks are stored as array options, members of the array are
           executed in order when the hook is triggered.  Like options
           different hooks may be global or belong to a session, window or
           pane.  Hooks may be configured with the **set-hook** or **set-option**
           commands and displayed with **show-hooks** or **show-options -H**.  The
           following two commands are equivalent:
    
                  set-hook -g pane-mode-changed[42] 'set -g status-left-style bg=red'
                  set-option -g pane-mode-changed[42] 'set -g status-left-style bg=red'
    
           Setting a hook without specifying an array index clears the hook
           and sets the first member of the array.
    
           A command's after hook is run after it completes, except when the
           command is run as part of a hook itself.  They are named with an
           ‘after-’ prefix.  For example, the following command adds a hook
           to select the even-vertical layout after every **split-window** :
    
                 set-hook -g after-split-window "selectl even-vertical"
    
           If a command fails, the ‘command-error’ hook will be fired.  For
           example, this could be used to write to a log file:
    
                 set-hook -g command-error "run-shell \"echo 'a tmux command failed' >>/tmp/log\""
    
           All the notifications listed in the “CONTROL MODE” section are
           hooks (without any arguments), except **%exit**.  The following
           additional hooks are available:
    
           alert-activity          Run when a window has activity.  See
                                   **monitor-activity**.
    
           alert-bell              Run when a window has received a bell.
                                   See **monitor-bell**.
    
           alert-silence           Run when a window has been silent.  See
                                   **monitor-silence**.
    
           client-active           Run when a client becomes the latest
                                   active client of its session.
    
           client-attached         Run when a client is attached.
    
           client-detached         Run when a client is detached
    
           client-focus-in         Run when focus enters a client
    
           client-focus-out        Run when focus exits a client
    
           client-resized          Run when a client is resized.
    
           client-session-changed  Run when a client's attached session is
                                   changed.
    
           client-light-theme      Run when a client switches to a light
                                   theme.
    
           client-dark-theme       Run when a client switches to a dark
                                   theme.
    
           command-error           Run when a command fails.
    
           pane-died               Run when the program running in a pane
                                   exits, but **remain-on-exit** is on so the
                                   pane has not closed.
    
           pane-exited             Run when the program running in a pane
                                   exits.
    
           pane-focus-in           Run when the focus enters a pane, if the
                                   **focus-events** option is on.
    
           pane-focus-out          Run when the focus exits a pane, if the
                                   **focus-events** option is on.
    
           pane-set-clipboard      Run when the terminal clipboard is set
                                   using the _xterm_(1) escape sequence.
    
           session-created         Run when a new session created.
    
           session-closed          Run when a session closed.
    
           session-renamed         Run when a session is renamed.
    
           window-layout-changed   Run when a window layout is changed.
    
           window-linked           Run when a window is linked into a
                                   session.
    
           window-renamed          Run when a window is renamed.
    
           window-resized          Run when a window is resized.  This may be
                                   after the _client-resized_ hook is run.
    
           window-unlinked         Run when a window is unlinked from a
                                   session.
    
           Hooks are managed with these commands:
    
           **set-hook**[**-agpRuw**] [**-t** _target-pane_] _hook-name_ [_command_]
                   Without **-R** , sets (or with **-u** unsets) hook _hook-name_ to
                   _command_.  The flags are the same as for **set-option**.
    
                   With **-R** , run _hook-name_ immediately.
    
           **show-hooks**[**-gpw**] [**-t** _target-pane_] [_hook_]
                   Shows hooks.  The flags are the same as for **show-options**.
    


## MOUSE SUPPORT



           If the **mouse** option is on (the default is off), **tmux** allows mouse
           events to be bound as keys.  The name of each key is made up of a
           mouse event (such as ‘MouseUp1’) and a location suffix, one of the
           following:
    
                 **Pane** the contents of a pane
                 **Border** a pane border
                 **Status** the status line window list
                 **StatusLeft** the left part of the status line
                 **StatusRight** the right part of the status line
                 **StatusDefault** any other part of the status line
                 **ScrollbarSlider** the scrollbar slider
                 **ScrollbarUp** above the scrollbar slider
                 **ScrollbarDown** below the scrollbar slider
    
           The following mouse events are available:
    
                 **WheelUp** WheelDown
                 **MouseDown1** MouseUp1      MouseDrag1   MouseDragEnd1
                 **MouseDown2** MouseUp2      MouseDrag2   MouseDragEnd2
                 **MouseDown3** MouseUp3      MouseDrag3   MouseDragEnd3
                 **SecondClick1** SecondClick2  SecondClick3
                 **DoubleClick1** DoubleClick2  DoubleClick3
                 **TripleClick1** TripleClick2  TripleClick3
    
           The ‘SecondClick’ events are fired for the second click of a
           double click, even if there may be a third click which will fire
           ‘TripleClick’ instead of ‘DoubleClick’.
    
           Each should be suffixed with a location, for example
           ‘MouseDown1Status’.
    
           The special token ‘{mouse}’ or ‘=’ may be used as _target-window_ or
           _target-pane_ in commands bound to mouse key bindings.  It resolves
           to the window or pane over which the mouse event took place (for
           example, the window in the status line over which button 1 was
           released for a ‘MouseUp1Status’ binding, or the pane over which
           the wheel was scrolled for a ‘WheelDownPane’ binding).
    
           The **send-keys -M** flag may be used to forward a mouse event to a
           pane.
    
           The default key bindings allow the mouse to be used to select and
           resize panes, to copy text and to change window using the status
           line.  These take effect if the **mouse** option is turned on.
    


## FORMATS



           Certain commands accept the **-F** flag with a _format_ argument.  This
           is a string which controls the output format of the command.
           Format variables are enclosed in ‘#{’ and ‘}’, for example
           ‘#{session_name}’.  The possible variables are listed in the table
           below, or the name of a **tmux** option may be used for an option's
           value, or the name of an environment variable.  Some variables
           have a shorter alias such as ‘#S’; ‘##’ is replaced by a single
           ‘#’, ‘#,’ by a ‘,’ and ‘#}’ by a ‘}’.
    
           Conditionals are available by prefixing with ‘?’.  For each pair
           of two arguments, if the variable in the first of the pair exists
           and is not zero, the second of the pair is chosen, otherwise it
           continues.  If no condition from paired arguments matches, the
           default value is chosen.  If there's an unpaired final argument,
           that is the default.  If not, the default is the empty string.
           For example ‘#{?session_attached,attached,not attached}’ will
           include the string ‘attached’ if the session is attached and the
           string ‘not attached’ if it is unattached, or
           ‘#{?automatic-rename,yes,no}’ will include ‘yes’ if
           **automatic-rename** is enabled, or ‘no’ if not.
           ‘#{?#{n:window_name},#{window_name} - }’ will include the window
           name with a dash separator if there is a window name, or the empty
           string if the window name is empty.
           ‘#{?session_format,format1,window_format,format2,format3}’ will
           include format1 for a session format, format2 for a window format,
           or format3 for neither a session nor a window format.
           Conditionals can be nested arbitrarily.  Inside a conditional, ‘,’
           and ‘}’ must be escaped as ‘#,’ and ‘#}’, unless they are part of
           a ‘#{...}’ replacement.  For example:
    
                 #{?pane_in_mode,#[fg=white#,bg=red],#[fg=red#,bg=white]}#W
    
           String comparisons may be expressed by prefixing two comma-
           separated alternatives by ‘==’, ‘!=’, ‘<’, ‘>’, ‘<=’ or ‘>=’ and a
           colon.  For example ‘#{==:#{host},myhost}’ will be replaced by ‘1’
           if running on ‘myhost’, otherwise by ‘0’.  ‘||’ and ‘&&’ evaluate
           to true if any or all of the comma-separated alternatives are
           true, for example ‘#{||:#{pane_in_mode},#{alternate_on}}’.  ‘!’
           evaluates to true if the value is false and vice versa, for
           example ‘#{!:#{pane_in_mode}}’.  ‘!!’ converts a value to a
           canonical boolean form, 1 for true and 0 for false, for example
           ‘#{!!:non-empty string}’ evaluates to 1.
    
           An ‘m’ specifies a _glob_(7) pattern or regular expression
           comparison.  The first argument is the pattern and the second the
           string to compare.  An optional argument specifies flags: ‘r’
           means the pattern is a regular expression instead of the default
           _glob_(7) pattern, and ‘i’ means to ignore case.  For example:
           ‘#{m:*foo*,#{host}}’ or ‘#{m/ri:^A,MYVAR}’.  A ‘C’ performs a
           search for a _glob_(7) pattern or regular expression in the pane
           content and evaluates to zero if not found, or a line number if
           found.  Like ‘m’, an ‘r’ flag means search for a regular
           expression and ‘i’ ignores case.  For example: ‘#{C/r:^Start}’
    
           Numeric operators may be performed by prefixing two comma-
           separated alternatives with an ‘e’ and an operator.  An optional
           ‘f’ flag may be given after the operator to use floating point
           numbers, otherwise integers are used.  This may be followed by a
           number giving the number of decimal places to use for the result.
           The available operators are: addition ‘+’, subtraction ‘-’,
           multiplication ‘*’, division ‘/’, modulus ‘m’ or ‘%’ (note that
           ‘%’ must be escaped as ‘%%’ in formats which are also expanded by
           _strftime_(3)) and numeric comparison operators ‘==’, ‘!=’, ‘<’,
           ‘<=’, ‘>’ and ‘>=’.  For example, ‘#{e|*|f|4:5.5,3}’ multiplies
           5.5 by 3 for a result with four decimal places and ‘#{e|%%:7,3}’
           returns the modulus of 7 and 3.  ‘a’ replaces a numeric argument
           by its ASCII equivalent, so ‘#{a:98}’ results in ‘b’.  ‘c’
           replaces a **tmux** colour by its six-digit hexadecimal RGB value.
    
           A limit may be placed on the length of the resultant string by
           prefixing it by an ‘=’, a number and a colon.  Positive numbers
           count from the start of the string and negative from the end, so
           ‘#{=5:pane_title}’ will include at most the first five characters
           of the pane title, or ‘#{=-5:pane_title}’ the last five
           characters.  A suffix or prefix may be given as a second argument
           - if provided then it is appended or prepended to the string if
           the length has been trimmed, for example ‘#{=/5/...:pane_title}’
           will append ‘...’ if the pane title is more than five characters.
           Similarly, ‘p’ pads the string to a given width, for example
           ‘#{p10:pane_title}’ will result in a width of at least 10
           characters.  A positive width pads on the left, a negative on the
           right.  ‘n’ expands to the length of the variable and ‘w’ to its
           width when displayed, for example ‘#{n:window_name}’.  ‘R’ repeats
           the first argument by a number of times given by the second
           argument, so ‘#{R:a,3}’ will result in ‘aaa’.
    
           Prefixing a time variable with ‘t:’ will convert it to a string,
           so if ‘#{window_activity}’ gives ‘1445765102’,
           ‘#{t:window_activity}’ gives ‘Sun Oct 25 09:25:02 2015’.  Adding
           ‘p (’ ‘`t/p`’) will use shorter but less accurate time format for
           times in the past.  A custom format may be given using an ‘f’
           suffix (note that ‘%’ must be escaped as ‘%%’ if the format is
           separately being passed through _strftime_(3), for example in the
           **status-left** option): ‘#{t/f/%%H#:%%M:window_activity}’, see
           _strftime_(3).
    
           The ‘b:’ and ‘d:’ prefixes are _basename_(3) and _dirname_(3) of the
           variable respectively.  ‘q:’ will escape _sh_(1) special characters
           or with a ‘h’ suffix, escape hash characters (so ‘#’ becomes
           ‘##’).  ‘E:’ will expand the format twice, for example
           ‘#{E:status-left}’ is the result of expanding the content of the
           **status-left** option rather than the option itself.  ‘T:’ is like
           ‘E:’ but also expands _strftime_(3) specifiers.  ‘S:’, ‘W:’, ‘P:’ or
           ‘L:’ will loop over each session, window, pane or client and
           insert the format once for each.  ‘L:’, ‘S:’ and ‘W:’ can take an
           optional sort argument ‘/i’, ‘/n’, ‘/t’ to sort by index, name, or
           last activity time; additionally ‘/r’ to sort in reverse order.
           ‘/r’ can also be used with ‘P:’ to reverse the sort order by pane
           index.  For example, ‘S/nr:’ to sort sessions by name in reverse
           order.  For each, two comma-separated formats may be given: the
           second is used for the current window, active pane, or active
           session.  For example, to get a list of windows formatted like the
           status line:
    
                 #{W:#{E:window-status-format} ,#{E:window-status-current-format} }
    
           ‘N:’ checks if a window (without any suffix or with the ‘w’
           suffix) or a session (with the ‘s’ suffix) name exists, for
           example ‘`N/w:foo`’ is replaced with 1 if a window named ‘foo’
           exists.
    
           A prefix of the form ‘s/foo/bar/:’ will substitute ‘foo’ with
           ‘bar’ throughout.  The first argument may be an extended regular
           expression and a final argument may be ‘i’ to ignore case, for
           example ‘s/a(.)/\1x/i:’ would change ‘abABab’ into ‘bxBxbx’.  A
           different delimiter character may also be used, to avoid
           collisions with literal slashes in the pattern.  For example,
           ‘s|foo/|bar/|:’ will substitute ‘foo/’ with ‘bar/’ throughout.
    
           Multiple modifiers may be separated with a semicolon (;) as in
           ‘#{T;=10:status-left}’, which limits the resulting _strftime_(3)
           -expanded string to at most 10 characters.
    
           In addition, the last line of a shell command's output may be
           inserted using ‘#()’.  For example, ‘#(uptime)’ will insert the
           system's uptime.  When constructing formats, **tmux** does not wait
           for ‘#()’ commands to finish; instead, the previous result from
           running the same command is used, or a placeholder if the command
           has not been run before.  If the command hasn't exited, the most
           recent line of output will be used, but the status line will not
           be updated more than once a second.  Commands are executed using
           _/bin/sh_ and with the **tmux** global environment set (see the “GLOBAL
           AND SESSION ENVIRONMENT” section).
    
           An ‘l’ specifies that a string should be interpreted literally and
           not expanded.  For example ‘#{l:#{?pane_in_mode,yes,no}}’ will be
           replaced by ‘#{?pane_in_mode,yes,no}’.
    
           The following variables are available, where appropriate:
    
           **Variable name          Alias    Replaced with**
           **active_window_index** Index of active window in session
           **alternate_on** 1 if pane is in alternate screen
           **alternate_saved_x** Saved cursor X in alternate screen
           **alternate_saved_y** Saved cursor Y in alternate screen
           **buffer_created** Time buffer created
           **buffer_name** Name of buffer
           **buffer_sample** Sample of start of buffer
           **buffer_size** Size of the specified buffer in
                                           bytes
           **client_activity** Time client last had activity
           **client_cell_height** Height of each client cell in
                                           pixels
           **client_cell_width** Width of each client cell in
                                           pixels
           **client_control_mode** 1 if client is in control mode
           **client_created** Time client created
           **client_discarded** Bytes discarded when client behind
           **client_flags** List of client flags
           **client_height** Height of client
           **client_key_table** Current key table
           **client_last_session** Name of the client's last session
           **client_name** Name of client
           **client_pid** PID of client process
           **client_prefix** 1 if prefix key has been pressed
           **client_readonly** 1 if client is read-only
           **client_session** Name of the client's session
           **client_termfeatures** Terminal features of client, if
                                           any
           **client_termname** Terminal name of client
           **client_termtype** Terminal type of client, if
                                           available
           **client_tty** Pseudo terminal of client
           **client_uid** UID of client process
           **client_user** User of client process
           **client_utf8** 1 if client supports UTF-8
           **client_width** Width of client
           **client_written** Bytes written to client
           **command** Name of command in use, if any
           **command_list_alias** Command alias if listing commands
           **command_list_name** Command name if listing commands
           **command_list_usage** Command usage if listing commands
           **config_files** List of configuration files loaded
           **cursor_blinking** 1 if the cursor is blinking
           **copy_cursor_hyperlink** Hyperlink under cursor in copy
                                           mode
           **copy_cursor_line** Line the cursor is on in copy mode
           **copy_cursor_word** Word under cursor in copy mode
           **copy_cursor_x** Cursor X position in copy mode
           **copy_cursor_y** Cursor Y position in copy mode
           **current_file** Current configuration file
           **cursor_character** Character at cursor in pane
           **cursor_colour** Cursor colour in pane
           **cursor_flag** Pane cursor flag
           **cursor_shape** Cursor shape in pane
           **cursor_very_visible** 1 if the cursor is in very visible
                                           mode
           **cursor_x** Cursor X position in pane
           **cursor_y** Cursor Y position in pane
           **history_bytes** Number of bytes in window history
           **history_limit** Maximum window history lines
           **history_size** Size of history in lines
           **hook** Name of running hook, if any
           **hook_client** Name of client where hook was run,
                                           if any
           **hook_pane** ID of pane where hook was run, if
                                           any
           **hook_session** ID of session where hook was run,
                                           if any
           **hook_session_name** Name of session where hook was
                                           run, if any
           **hook_window** ID of window where hook was run,
                                           if any
           **hook_window_name** Name of window where hook was run,
                                           if any
           **host** #H       Hostname of local host
           **host_short** #h       Hostname of local host (no domain
                                           name)
           **insert_flag** Pane insert flag
           **keypad_cursor_flag** Pane keypad cursor flag
           **keypad_flag** Pane keypad flag
           **last_session_index** Index of last session
           **last_window_index** Index of last window in session
           **line** Line number in the list
           **loop_last_flag** 1 if last window, pane, session,
                                           client in the W:, P:, S:, or L:
                                           loop
           **mouse_all_flag** Pane mouse all flag
           **mouse_any_flag** Pane mouse any flag
           **mouse_button_flag** Pane mouse button flag
           **mouse_hyperlink** Hyperlink under mouse, if any
           **mouse_line** Line under mouse, if any
           **mouse_sgr_flag** Pane mouse SGR flag
           **mouse_standard_flag** Pane mouse standard flag
           **mouse_status_line** Status line on which mouse event
                                           took place
           **mouse_status_range** Range type or argument of mouse
                                           event on status line
           **mouse_utf8_flag** Pane mouse UTF-8 flag
           **mouse_word** Word under mouse, if any
           **mouse_x** Mouse X position, if any
           **mouse_y** Mouse Y position, if any
           **next_session_id** Unique session ID for next new
                                           session
           **origin_flag** Pane origin flag
           **pane_active** 1 if active pane
           **pane_at_bottom** 1 if pane is at the bottom of
                                           window
           **pane_at_left** 1 if pane is at the left of window
           **pane_at_right** 1 if pane is at the right of
                                           window
           **pane_at_top** 1 if pane is at the top of window
           **pane_bg** Pane background colour
           **pane_bottom** Bottom of pane
           **pane_current_command** Current command if available
           **pane_current_path** Current path if available
           **pane_dead** 1 if pane is dead
           **pane_dead_signal** Exit signal of process in dead
                                           pane
           **pane_dead_status** Exit status of process in dead
                                           pane
           **pane_dead_time** Exit time of process in dead pane
           **pane_fg** Pane foreground colour
           **pane_format** 1 if format is for a pane
           **pane_height** Height of pane
           **pane_id** #D       Unique pane ID
           **pane_in_mode** Number of modes pane is in
           **pane_index** #P       Index of pane
           **pane_input_off** 1 if input to pane is disabled
           **pane_key_mode** Extended key reporting mode in
                                           this pane
           **pane_last** 1 if last pane
           **pane_left** Left of pane
           **pane_marked** 1 if this is the marked pane
           **pane_marked_set** 1 if a marked pane is set
           **pane_mode** Name of pane mode, if any
           **pane_path** Path of pane (can be set by
                                           application)
           **pane_pid** PID of first process in pane
           **pane_pipe** 1 if pane is being piped
           **pane_right** Right of pane
           **pane_search_string** Last search string in copy mode
           **pane_start_command** Command pane started with
           **pane_start_path** Path pane started with
           **pane_synchronized** 1 if pane is synchronized
           **pane_tabs** Pane tab positions
           **pane_title** #T       Title of pane (can be set by
                                           application)
           **pane_top** Top of pane
           **pane_tty** Pseudo terminal of pane
           **pane_unseen_changes** 1 if there were changes in pane
                                           while in mode
           **pane_width** Width of pane
           **pid** Server PID
           **rectangle_toggle** 1 if rectangle selection is
                                           activated
           **scroll_position** Scroll position in copy mode
           **scroll_region_lower** Bottom of scroll region in pane
           **scroll_region_upper** Top of scroll region in pane
           **search_count** Count of search results
           **search_count_partial** 1 if search count is partial count
           **search_match** Search match if any
           **search_present** 1 if search started in copy mode
           **selection_active** 1 if selection started and changes
                                           with the cursor in copy mode
           **selection_end_x** X position of the end of the
                                           selection
           **selection_end_y** Y position of the end of the
                                           selection
           **selection_present** 1 if selection started in copy
                                           mode
           **selection_start_x** X position of the start of the
                                           selection
           **selection_start_y** Y position of the start of the
                                           selection
           **server_sessions** Number of sessions
           **session_active** 1 if session active
           **session_activity** Time of session last activity
           **session_activity_flag** 1 if any window in session has
                                           activity
           **session_alerts** List of window indexes with alerts
           **session_attached** Number of clients session is
                                           attached to
           **session_attached_list** List of clients session is
                                           attached to
           **session_bell_flag** 1 if any window in session has
                                           bell
           **session_created** Time session created
           **session_format** 1 if format is for a session
           **session_group** Name of session group
           **session_group_attached** Number of clients sessions in
                                           group are attached to
           **session_group_attached_list** List of clients sessions in group
                                           are attached to
           **session_group_list** List of sessions in group
           **session_group_many_attached** 1 if multiple clients attached to
                                           sessions in group
           **session_group_size** Size of session group
           **session_grouped** 1 if session in a group
           **session_id** Unique session ID
           **session_index** Index of session
           **session_last_attached** Time session last attached
           **session_many_attached** 1 if multiple clients attached
           **session_marked** 1 if this session contains the
                                           marked pane
           **session_name** #S       Name of session
           **session_path** Working directory of session
           **session_silence_flag** 1 if any window in session has
                                           silence alert
           **session_stack** Window indexes in most recent
                                           order
           **session_windows** Number of windows in session
           **socket_path** Server socket path
           **sixel_support** 1 if server has support for SIXEL
           **start_time** Server start time
           **uid** Server UID
           **user** Server user
           **version** Server version
           **window_active** 1 if window active
           **window_active_clients** Number of clients viewing this
                                           window
           **window_active_clients_list** List of clients viewing this
                                           window
           **window_active_sessions** Number of sessions on which this
                                           window is active
           **window_active_sessions_list** List of sessions on which this
                                           window is active
           **window_activity** Time of window last activity
           **window_activity_flag** 1 if window has activity
           **window_bell_flag** 1 if window has bell
           **window_bigger** 1 if window is larger than client
           **window_cell_height** Height of each cell in pixels
           **window_cell_width** Width of each cell in pixels
           **window_end_flag** 1 if window has the highest index
           **window_flags** #F       Window flags with # escaped as ##
           **window_format** 1 if format is for a window
           **window_height** Height of window
           **window_id** Unique window ID
           **window_index** #I       Index of window
           **window_last_flag** 1 if window is the last used
           **window_layout** Window layout description,
                                           ignoring zoomed window panes
           **window_linked** 1 if window is linked across
                                           sessions
           **window_linked_sessions** Number of sessions this window is
                                           linked to
           **window_linked_sessions_list** List of sessions this window is
                                           linked to
           **window_marked_flag** 1 if window contains the marked
                                           pane
           **window_name** #W       Name of window
           **window_offset_x** X offset into window if larger
                                           than client
           **window_offset_y** Y offset into window if larger
                                           than client
           **window_panes** Number of panes in window
           **window_raw_flags** Window flags with nothing escaped
           **window_silence_flag** 1 if window has silence alert
           **window_stack_index** Index in session most recent stack
           **window_start_flag** 1 if window has the lowest index
           **window_visible_layout** Window layout description,
                                           respecting zoomed window panes
           **window_width** Width of window
           **window_zoomed_flag** 1 if window is zoomed
           **wrap_flag** Pane wrap flag
    


## STYLES



           **tmux** offers various options to specify the colour and attributes
           of aspects of the interface, for example **status-style** for the
           status line.  In addition, embedded styles may be specified in
           format options, such as **status-left** , by enclosing them in ‘#[’ and
           ‘]’.
    
           A style may be the single term ‘default’ to specify the default
           style (which may come from an option, for example **status-style** in
           the status line) or a space or comma separated list of the
           following:
    
           **fg=colour**
                   Set the foreground colour.  The colour is one of: **black** ,
                   **red** , **green** , **yellow** , **blue** , **magenta** , **cyan** , **white** ; if
                   supported the bright variants **brightblack** , **brightred** , ...;
                   **colour0** to **colour255** from the 256-colour set; **default** for
                   the default colour; **terminal** for the terminal default
                   colour; or a hexadecimal RGB string such as ‘#ffffff’.
    
           **bg=colour**
                   Set the background colour.
    
           **us=colour**
                   Set the underscore colour.
    
           **none** Set no attributes (turn off any active attributes).
    
           **acs** , **bright**(or **bold**), **dim** , **underscore** , **blink** , **reverse** , **hidden** ,
                   **italics** , **overline** , **strikethrough** , **double-underscore** ,
                   **curly-underscore** , **dotted-underscore** , **dashed-underscore**
                   Set an attribute.  Any of the attributes may be prefixed
                   with ‘no’ to unset.  **acs** is the terminal alternate
                   character set.
    
           **align=left**(or **noalign**), **align=centre** , **align=right**
                   Align text to the left, centre or right of the available
                   space if appropriate.
    
           **fill=colour**
                   Fill the available space with a background colour if
                   appropriate.
    
           **list=on** , **list=focus** , **list=left-marker** , **list=right-marker** , **nolist**
                   Mark the position of the various window list components in
                   the **status-format** option: **list=on** marks the start of the
                   list; **list=focus** is the part of the list that should be
                   kept in focus if the entire list won't fit in the
                   available space (typically the current window);
                   **list=left-marker** and **list=right-marker** mark the text to be
                   used to mark that text has been trimmed from the left or
                   right of the list if there is not enough space.
    
           **noattr** Do not copy attributes from the default style.
    
           **push-default** , **pop-default**
                   Store the current colours and attributes as the default or
                   reset to the previous default.  A **push-default** affects any
                   subsequent use of the **default** term until a **pop-default**.
                   Only one default may be pushed (each **push-default** replaces
                   the previous saved default).
    
           **range=left** , **range=right** , **range=session|X** , **range=window|X** ,
                   **range=pane|X** , **range=user|X** , **norange**
                   Mark a range for mouse events in the **status-format** option.
                   When a mouse event occurs in the **range=left** or **range=right**
                   range, the ‘StatusLeft’ and ‘StatusRight’ key bindings are
                   triggered.
    
                   **range=session|X** , **range=window|X** and **range=pane|X** are
                   ranges for a session, window or pane.  These trigger the
                   ‘Status’ mouse key with the target session, window or pane
                   given by the ‘X’ argument.  ‘X’ is a session ID, window
                   index in the current session or a pane ID.  For these, the
                   **mouse_status_range** format variable will be set to
                   ‘session’, ‘window’ or ‘pane’.
    
                   **range=user|X** is a user-defined range; it triggers the
                   ‘Status’ mouse key.  The argument ‘X’ will be available in
                   the **mouse_status_range** format variable.  ‘X’ must be at
                   most 15 bytes in length.
    
           **set-default**
                   Set the current colours and attributes as the default,
                   overwriting any previous default.  The previous default
                   cannot be restored.
    
           Examples are:
    
                 fg=yellow bold underscore blink
                 bg=black,fg=default,noreverse
    


## NAMES AND TITLES



           **tmux** distinguishes between names and titles.  Windows and sessions
           have names, which may be used to specify them in targets and are
           displayed in the status line and various lists: the name is the
           **tmux** identifier for a window or session.  Only panes have titles.
           A pane's title is typically set by the program running inside the
           pane using an escape sequence (like it would set the _xterm_(1)
           window title in _X_(7)).  Windows themselves do not have titles - a
           window's title is the title of its active pane.  **tmux** itself may
           set the title of the terminal in which the client is running, see
           the **set-titles** option.
    
           A session's name is set with the **new-session** and **rename-session**
           commands.  A window's name is set with one of:
    
           1.      A command argument (such as **-n** for **new-window** or
                   **new-session**).
    
           2.      An escape sequence (if the **allow-rename** option is turned
                   on):
    
                         $ printf '\033kWINDOW_NAME\033\\'
    
           3.      Automatic renaming, which sets the name to the active
                   command in the window's active pane.  See the
                   **automatic-rename** option.
    
           When a pane is first created, its title is the hostname.  A pane's
           title can be set via the title setting escape sequence, for
           example:
    
                 $ printf '\033]2;My Title\033\\'
    
           It can also be modified with the **select-pane -T** command.
    


## GLOBAL AND SESSION ENVIRONMENT



           When the server is started, **tmux** copies the environment into the
           _global environment_ ; in addition, each session has a _session_
           _environment_.  When a window is created, the session and global
           environments are merged.  If a variable exists in both, the value
           from the session environment is used.  The result is the initial
           environment passed to the new process.
    
           The **update-environment** session option may be used to update the
           session environment from the client when a new session is created
           or an old reattached.  **tmux** also initialises the TMUX variable
           with some internal information to allow commands to be executed
           from inside, and the TERM variable with the correct terminal
           setting of ‘screen’.
    
           Variables in both session and global environments may be marked as
           hidden.  Hidden variables are not passed into the environment of
           new processes and instead can only be used by tmux itself (for
           example in formats, see the “FORMATS” section).
    
           Commands to alter and view the environment are:
    
           **set-environment**[**-Fhgru**] [**-t** _target-session_] _variable_ [_value_]
                         (alias: **setenv**)
                   Set or unset an environment variable.  If **-g** is used, the
                   change is made in the global environment; otherwise, it is
                   applied to the session environment for _target-session_.  If
                   **-F** is present, then _value_ is expanded as a format.  The **-u**
                   flag unsets a variable.  **-r** indicates the variable is to
                   be removed from the environment before starting a new
                   process.  **-h** marks the variable as hidden.
    
           **show-environment**[**-hgs**] [**-t** _target-session_] [_variable_]
                         (alias: **showenv**)
                   Display the environment for _target-session_ or the global
                   environment with **-g**.  If _variable_ is omitted, all
                   variables are shown.  Variables removed from the
                   environment are prefixed with ‘-’.  If **-s** is used, the
                   output is formatted as a set of Bourne shell commands.  **-h**
                   shows hidden variables (omitted by default).
    


## STATUS LINE



           **tmux** includes an optional status line which is displayed in the
           bottom line of each terminal.
    
           By default, the status line is enabled and one line in height (it
           may be disabled or made multiple lines with the **status** session
           option) and contains, from left-to-right: the name of the current
           session in square brackets; the window list; the title of the
           active pane in double quotes; and the time and date.
    
           Each line of the status line is configured with the **status-format**
           option.  The default is made of three parts: configurable left and
           right sections (which may contain dynamic content such as the time
           or output from a shell command, see the **status-left** ,
           **status-left-length** , **status-right** , and **status-right-length** options
           below), and a central window list.  By default, the window list
           shows the index, name and (if any) flag of the windows present in
           the current session in ascending numerical order.  It may be
           customised with the _window-status-format_ and
           _window-status-current-format_ options.  The flag is one of the
           following symbols appended to the window name:
    
                 **Symbol    Meaning**
                 ***** Denotes the current window.
                 **-** Marks the last window (previously selected).
                 **#** Window activity is monitored and activity has been
                                      detected.
                 **!** Window bells are monitored and a bell has occurred
                                      in the window.
                 **~** The window has been silent for the monitor-silence
                                      interval.
                 **M** The window contains the marked pane.
                 **Z** The window's active pane is zoomed.
    
           The # symbol relates to the **monitor-activity** window option.  The
           window name is printed in inverted colours if an alert (bell,
           activity or silence) is present.
    
           The colour and attributes of the status line may be configured,
           the entire status line using the **status-style** session option and
           individual windows using the **window-status-style** window option.
    
           The status line is automatically refreshed at interval if it has
           changed, the interval may be controlled with the **status-interval**
           session option.
    
           Commands related to the status line are as follows:
    
           **clear-prompt-history**[**-T** _prompt-type_]
                         (alias: **clearphist**)
                   Clear status prompt history for prompt type _prompt-type_.
                   If **-T** is omitted, then clear history for all types.  See
                   **command-prompt** for possible values for _prompt-type_.
    
           **command-prompt**[**-1bFikN**] [**-I** _inputs_] [**-p** _prompts_] [**-t**
                   _target-client_] [**-T** _prompt-type_] [_template_]
                   Open the command prompt in a client.  This may be used
                   from inside **tmux** to execute commands interactively.
    
                   If _template_ is specified, it is used as the command.  With
                   **-F** , _template_ is expanded as a format.
    
                   If present, **-I** is a comma-separated list of the initial
                   text for each prompt.  If **-p** is given, _prompts_ is a comma-
                   separated list of prompts which are displayed in order;
                   otherwise a single prompt is displayed, constructed from
                   _template_ if it is present, or ‘:’ if not.
    
                   Before the command is executed, the first occurrence of
                   the string ‘%%’ and all occurrences of ‘%1’ are replaced
                   by the response to the first prompt, all ‘%2’ are replaced
                   with the response to the second prompt, and so on for
                   further prompts.  Up to nine prompt responses may be
                   replaced (‘%1’ to ‘%9’).  ‘%%%’ is like ‘%%’ but any
                   quotation marks are escaped.
    
                   **-1** makes the prompt only accept one key press, in this
                   case the resulting input is a single character.  **-k** is
                   like **-1** but the key press is translated to a key name.  **-N**
                   makes the prompt only accept numeric key presses.  **-i**
                   executes the command every time the prompt input changes
                   instead of when the user exits the command prompt.
    
                   **-T** tells **tmux** the prompt type.  This affects what
                   completions are offered when _Tab_ is pressed.  Available
                   types are: ‘command’, ‘search’, ‘target’ and
                   ‘window-target’.
    
                   The following keys have a special meaning in the command
                   prompt, depending on the value of the **status-keys** option:
    
                         **Function                             vi        emacs**
                         **Cancel command**
                                                                                  **prompt** q         Escape
                         **Delete from cursor to start of word** C-w
                         **Delete entire command** d         C-u
                         **Delete from cursor to end** D         C-k
                         **Execute command** Enter     Enter
                         **Get next command from history** Down
                         **Get previous command from history** Up
                         **Insert top paste buffer** p         C-y
                         **Look for completions** Tab       Tab
                         **Move cursor left** h         Left
                         **Move cursor right** l         Right
                         **Move cursor to end** $         C-e
                         **Move cursor to next word** w         M-f
                         **Move cursor to previous word** b         M-b
                         **Move cursor to start** 0         C-a
                         **Transpose characters** C-t
    
                   With **-b** , the prompt is shown in the background and the
                   invoking client does not exit until it is dismissed.
    
           **confirm-before**[**-by**] [**-c** _confirm-key_] [**-p** _prompt_] [**-t**
                   _target-client_] _command_
                         (alias: **confirm**)
                   Ask for confirmation before executing _command_.  If **-p** is
                   given, _prompt_ is the prompt to display; otherwise a prompt
                   is constructed from _command_.  It may contain the special
                   character sequences supported by the **status-left** option.
                   With **-b** , the prompt is shown in the background and the
                   invoking client does not exit until it is dismissed.  **-y**
                   changes the default behaviour (if Enter alone is pressed)
                   of the prompt to run the command.  **-c** changes the
                   confirmation key to _confirm-key_ ; the default is ‘y’.
    
           **display-menu**[**-OM**] [**-b** _border-lines_] [**-c** _target-client_] [**-C**
                   _starting-choice_] [**-H** _selected-style_] [**-s** _style_] [**-S**
                   _border-style_] [**-t** _target-pane_] [**-T** _title_] [**-x** _position_]
                   [**-y** _position_] _name key command_ [_name key command ..._]
                         (alias: **menu**)
                   Display a menu on _target-client_.  _target-pane_ gives the
                   target for any commands run from the menu.
    
                   A menu is passed as a series of arguments: first the menu
                   item name, second the key shortcut (or empty for none) and
                   third the command to run when the menu item is chosen.
                   The name and command are formats, see the “FORMATS” and
                   “STYLES” sections.  If the name begins with a hyphen (-),
                   then the item is disabled (shown dim) and may not be
                   chosen.  The name may be empty for a separator line, in
                   which case both the key and command should be omitted.
    
                   **-b** sets the type of characters used for drawing menu
                   borders.  See **popup-border-lines** for possible values for
                   _border-lines_.
    
                   **-H** sets the style for the selected menu item (see
                   “STYLES”).
    
                   **-s** sets the style for the menu and **-S** sets the style for
                   the menu border (see “STYLES”).
    
                   **-T** is a format for the menu title (see “FORMATS”).
    
                   **-C** sets the menu item selected by default, if the menu is
                   not bound to a mouse key binding.
    
                   **-x** and **-y** give the position of the menu.  Both may be a
                   row or column number, or one of the following special
                   values:
    
                         **Value    Flag    Meaning**
                         **C** Both    The centre of the terminal
                         **R        -x** The right side of the terminal
                         **P** Both    The bottom left of the pane
                         **M** Both    The mouse position
                         **W** Both    The window position on the status
                                          line
                         **S        -y** The line above or below the status
                                          line
    
                   Or a format, which is expanded including the following
                   additional variables:
    
                         **Variable name                 Replaced with**
                         **popup_centre_x** Centered in the client
                         **popup_centre_y** Centered in the client
                         **popup_height** Height of menu or
                                                       popup
                         **popup_mouse_bottom** Bottom of at the mouse
                         **popup_mouse_centre_x** Horizontal centre at
                                                       the mouse
                         **popup_mouse_centre_y** Vertical centre at the
                                                       mouse
                         **popup_mouse_top** Top at the mouse
                         **popup_mouse_x** Mouse X position
                         **popup_mouse_y** Mouse Y position
                         **popup_pane_bottom** Bottom of the pane
                         **popup_pane_left** Left of the pane
                         **popup_pane_right** Right of the pane
                         **popup_pane_top** Top of the pane
                         **popup_status_line_y** Above or below the
                                                       status line
                         **popup_width** Width of menu or popup
                         **popup_window_status_line_x** At the window position
                                                       in status line
                         **popup_window_status_line_y** At the status line
                                                       showing the window
    
                   Each menu consists of items followed by a key shortcut
                   shown in brackets.  If the menu is too large to fit on the
                   terminal, it is not displayed.  Pressing the key shortcut
                   chooses the corresponding item.  If the mouse is enabled
                   and the menu is opened from a mouse key binding, releasing
                   the mouse button with an item selected chooses that item
                   and releasing the mouse button without an item selected
                   closes the menu.  **-O** changes this behaviour so that the
                   menu does not close when the mouse button is released
                   without an item selected the menu is not closed and a
                   mouse button must be clicked to choose an item.
    
                   **-M** tells **tmux** the menu should handle mouse events; by
                   default only menus opened from mouse key bindings do so.
    
                   The following keys are available in menus:
    
                         **Key    Function**
                         **Enter** Choose selected item
                         **Up** Select previous item
                         **Down** Select next item
                         **q** Exit menu
    
           **display-message**[**-aCIlNpv**] [**-c** _target-client_] [**-d** _delay_] [**-t**
                   _target-pane_] [_message_]
                         (alias: **display**)
                   Display a message.  If **-p** is given, the output is printed
                   to stdout, otherwise it is displayed in the _target-client_
                   status line for up to _delay_ milliseconds.  If _delay_ is not
                   given, the **display-time** option is used; a delay of zero
                   waits for a key press.  ‘N’ ignores key presses and closes
                   only after the delay expires.  If **-C** is given, the pane
                   will continue to be updated while the message is
                   displayed.  If **-l** is given, _message_ is printed unchanged.
                   Otherwise, the format of _message_ is described in the
                   “FORMATS” section; information is taken from _target-pane_
                   if **-t** is given, otherwise the active pane.
    
                   **-v** prints verbose logging as the format is parsed and **-a**
                   lists the format variables and their values.
    
                   **-I** forwards any input read from stdin to the empty pane
                   given by _target-pane_.
    
           **display-popup**[**-BCE**] [**-b** _border-lines_] [**-c** _target-client_] [**-d**
                   _start-directory_] [**-e** _environment_] [**-h** _height_] [**-s** _style_]
                   [**-S** _border-style_] [**-t** _target-pane_] [**-T** _title_] [**-w** _width_]
                   [**-x** _position_] [**-y** _position_] [_shell-command_ [_argument ..._]]
                         (alias: **popup**)
                   Display a popup running _shell-command_ (or _default-command_
                   when omitted) on _target-client_.  A popup is a rectangular
                   box drawn over the top of any panes.  Panes are not
                   updated while a popup is present.
    
                   **-E** closes the popup automatically when _shell-command_
                   exits.  Two **-E** closes the popup only if _shell-command_
                   exited with success.
    
                   **-x** and **-y** give the position of the popup, they have the
                   same meaning as for the **display-menu** command.  **-w** and **-h**
                   give the width and height - both may be a percentage
                   (followed by ‘%’).  If omitted, half of the terminal size
                   is used.
    
                   **-B** does not surround the popup by a border.
    
                   **-b** sets the type of characters used for drawing popup
                   borders.  When **-B** is specified, the **-b** option is ignored.
                   See **popup-border-lines** for possible values for
                   _border-lines_.
    
                   **-s** sets the style for the popup and **-S** sets the style for
                   the popup border (see “STYLES”).
    
                   **-e** takes the form ‘VARIABLE=value’ and sets an environment
                   variable for the popup; it may be specified multiple
                   times.
    
                   **-T** is a format for the popup title (see “FORMATS”).
    
                   The **-C** flag closes any popup on the client.
    
           **show-prompt-history**[**-T** _prompt-type_]
                         (alias: **showphist**)
                   Display status prompt history for prompt type _prompt-type_.
                   If **-T** is omitted, then show history for all types.  See
                   **command-prompt** for possible values for _prompt-type_.
    


## BUFFERS



           **tmux** maintains a set of named _paste buffers_.  Each buffer may be
           either explicitly or automatically named.  Explicitly named
           buffers are named when created with the **set-buffer** or **load-buffer**
           commands, or by renaming an automatically named buffer with
           **set-buffer -n**.  Automatically named buffers are given a name such
           as ‘buffer0001’, ‘buffer0002’ and so on.  When the **buffer-limit**
           option is reached, the oldest automatically named buffer is
           deleted.  Explicitly named buffers are not subject to **buffer-limit**
           and may be deleted with the **delete-buffer** command.
    
           Buffers may be added using **copy-mode** or the **set-buffer** and
           **load-buffer** commands, and pasted into a window using the
           **paste-buffer** command.  If a buffer command is used and no buffer
           is specified, the most recently added automatically named buffer
           is assumed.
    
           A configurable history buffer is also maintained for each window.
           By default, up to 2000 lines are kept; this can be altered with
           the **history-limit** option (see the **set-option** command above).
    
           The buffer commands are as follows:
    
           **choose-buffer**[**-NryZ**] [**-F** _format_] [**-f** _filter_] [**-K** _key-format_] [**-O**
                   _sort-order_] [**-t** _target-pane_] [_template_]
                   Put a pane into buffer mode, where a buffer may be chosen
                   interactively from a list.  Each buffer is shown on one
                   line.  A shortcut key is shown on the left in brackets
                   allowing for immediate choice, or the list may be
                   navigated and an item chosen or otherwise manipulated
                   using the keys below.  **-Z** zooms the pane.  **-y** disables any
                   confirmation prompts.  The following keys may be used in
                   buffer mode:
    
                         **Key    Function**
                         **Enter** Paste selected buffer
                         **Up** Select previous buffer
                         **Down** Select next buffer
                         **C-s** Search by name or content
                         **n** Repeat last search forwards
                         **N** Repeat last search backwards
                         **t** Toggle if buffer is tagged
                         **T** Tag no buffers
                         **C-t** Tag all buffers
                         **p** Paste selected buffer
                         **P** Paste tagged buffers
                         **d** Delete selected buffer
                         **D** Delete tagged buffers
                         **e** Open the buffer in an editor
                         **f** Enter a format to filter items
                         **O** Change sort field
                         **r** Reverse sort order
                         **v** Toggle preview
                         **q** Exit mode
    
                   After a buffer is chosen, ‘%%’ is replaced by the buffer
                   name in _template_ and the result executed as a command.  If
                   _template_ is not given, "paste-buffer -p -b '%%'" is used.
    
                   **-O** specifies the initial sort field: one of ‘time’
                   (creation), ‘name’ or ‘size’.  **-r** reverses the sort order.
                   **-f** specifies an initial filter: the filter is a format -
                   if it evaluates to zero, the item in the list is not
                   shown, otherwise it is shown.  If a filter would lead to
                   an empty list, it is ignored.  **-F** specifies the format for
                   each item in the list and **-K** a format for each shortcut
                   key; both are evaluated once for each line.  **-N** starts
                   without the preview.  This command works only if at least
                   one client is attached.
    
           **clear-history**[**-H**] [**-t** _target-pane_]
                         (alias: **clearhist**)
                   Remove and free the history for the specified pane.  **-H**
                   also removes all hyperlinks.
    
           **delete-buffer**[**-b** _buffer-name_]
                         (alias: **deleteb**)
                   Delete the buffer named _buffer-name_ , or the most recently
                   added automatically named buffer if not specified.
    
           **list-buffers**[**-F** _format_] [**-f** _filter_]
                         (alias: **lsb**)
                   List the global buffers.  **-F** specifies the format of each
                   line and **-f** a filter.  Only buffers for which the filter
                   is true are shown.  See the “FORMATS” section.
    
           **load-buffer**[**-w**] [**-b** _buffer-name_] [**-t** _target-client_] _path_
                         (alias: **loadb**)
                   Load the contents of the specified paste buffer from _path_.
                   If **-w** is given, the buffer is also sent to the clipboard
                   for _target-client_ using the _xterm_(1) escape sequence, if
                   possible.  If _path_ is ‘-’, the contents are read from
                   stdin.
    
           **paste-buffer**[**-dpr**] [**-b** _buffer-name_] [**-s** _separator_] [**-t**
                   _target-pane_]
                         (alias: **pasteb**)
                   Insert the contents of a paste buffer into the specified
                   pane.  If not specified, paste into the current one.  With
                   **-d** , also delete the paste buffer.  When output, any
                   linefeed (LF) characters in the paste buffer are replaced
                   with a separator, by default carriage return (CR).  A
                   custom separator may be specified using the **-s** flag.  The
                   **-r** flag means to do no replacement (equivalent to a
                   separator of LF).  If **-p** is specified, paste bracket
                   control codes are inserted around the buffer if the
                   application has requested bracketed paste mode.
    
           **save-buffer**[**-a**] [**-b** _buffer-name_] _path_
                         (alias: **saveb**)
                   Save the contents of the specified paste buffer to _path_.
                   The **-a** option appends to rather than overwriting the file.
                   If _path_ is ‘-’, the contents are written to stdout.
    
           **set-buffer**[**-aw**] [**-b** _buffer-name_] [**-t** _target-client_] [**-n**
                   _new-buffer-name_] _data_
                         (alias: **setb**)
                   Set the contents of the specified buffer to _data_.  If **-w**
                   is given, the buffer is also sent to the clipboard for
                   _target-client_ using the _xterm_(1) escape sequence, if
                   possible.  The **-a** option appends to rather than
                   overwriting the buffer.  The **-n** option renames the buffer
                   to _new-buffer-name_.
    
           **show-buffer**[**-b** _buffer-name_]
                         (alias: **showb**)
                   Display the contents of the specified buffer.
    


## MISCELLANEOUS



           Miscellaneous commands are as follows:
    
           **clock-mode**[**-t** _target-pane_]
                   Display a large clock.
    
           **if-shell**[**-bF**] [**-t** _target-pane_] _shell-command command_ [_command_]
                         (alias: **if**)
                   Execute the first _command_ if _shell-command_ (run with
                   _/bin/sh_) returns success or the second _command_ otherwise.
                   Before being executed, _shell-command_ is expanded using the
                   rules specified in the “FORMATS” section, including those
                   relevant to _target-pane_.  With **-b** , _shell-command_ is run in
                   the background.
    
                   If **-F** is given, _shell-command_ is not executed but
                   considered success if neither empty nor zero (after
                   formats are expanded).
    
           **lock-server**
                         (alias: **lock**)
                   Lock each client individually by running the command
                   specified by the **lock-command** option.
    
           **run-shell**[**-bCE**] [**-c** _start-directory_] [**-d** _delay_] [**-t** _target-pane_]
                   [_shell-command_]
                         (alias: **run**)
                   Execute _shell-command_ using _/bin/sh_ or (with **-C**) a **tmux**
                   command in the background without creating a window.
                   Before being executed, _shell-command_ is expanded using the
                   rules specified in the “FORMATS” section.  With **-b** , the
                   command is run in the background.  **-d** waits for _delay_
                   seconds before starting the command.  **-E** redirects the
                   command's stderr to stdout instead of ignoring it.  If **-c**
                   is given, the current working directory is set to
                   _start-directory_.  If **-C** is not given, any output to stdout
                   is displayed in view mode (in the pane specified by **-t** or
                   the current pane if omitted) after the command finishes.
                   If the command fails, the exit status is also displayed.
    
           **wait-for**[**-L** | **-S** | **-U**] _channel_
                         (alias: **wait**)
                   When used without options, prevents the client from
                   exiting until woken using **wait-for -S** with the same
                   channel.  When **-L** is used, the channel is locked and any
                   clients that try to lock the same channel are made to wait
                   until the channel is unlocked with **wait-for -U**.
    


## EXIT MESSAGES



           When a **tmux** client detaches, it prints a message.  This may be one
           of:
    
           detached (from session ...)
                   The client was detached normally.
    
           detached and SIGHUP
                   The client was detached and its parent sent the SIGHUP
                   signal (for example with **detach-client -P**).
    
           lost tty
                   The client's _tty_(4) or _pty_(4) was unexpectedly destroyed.
    
           terminated
                   The client was killed with SIGTERM.
    
           too far behind
                   The client is in control mode and became unable to keep up
                   with the data from **tmux**.
    
           exited  The server exited when it had no sessions.
    
           server exited
                   The server exited when it received SIGTERM.
    
           server exited unexpectedly
                   The server crashed or otherwise exited without telling the
                   client the reason.
    


## TERMINFO EXTENSIONS



           **tmux** understands some unofficial extensions to _terminfo_(5).  It is
           not normally necessary to set these manually, instead the
           **terminal-features** option should be used.
    
           _AX_      An existing extension that tells **tmux** the terminal
                   supports default colours.
    
           _Bidi_    Tell **tmux** that the terminal supports the VTE bidirectional
                   text extensions.
    
           _Cs_ , _Cr_  Set the cursor colour.  The first takes a single string
                   argument and is used to set the colour; the second takes
                   no arguments and restores the default cursor colour.  If
                   set, a sequence such as this may be used to change the
                   cursor colour from inside **tmux** :
    
                         $ printf '\033]12;red\033\\'
    
                   The colour is an _X_(7) colour, see _XParseColor_(3).
    
           _Cmg, Clmg, Dsmg_ , _Enmg_
                   Set, clear, disable or enable DECSLRM margins.  These are
                   set automatically if the terminal reports it is _VT420_
                   compatible.
    
           _Dsbp_ , _Enbp_
                   Disable and enable bracketed paste.  These are set
                   automatically if the _XT_ capability is present.
    
           _Dseks_ , _Eneks_
                   Disable and enable extended keys.
    
           _Dsfcs_ , _Enfcs_
                   Disable and enable focus reporting.  These are set
                   automatically if the _XT_ capability is present.
    
           _Hls_     Set or clear a hyperlink annotation.
    
           _Nobr_    Tell **tmux** that the terminal does not use bright colors for
                   bold display.
    
           _Rect_    Tell **tmux** that the terminal supports rectangle operations.
    
           _Smol_    Enable the overline attribute.
    
           _Smulx_   Set a styled underscore.  The single parameter is one of:
                   0 for no underscore, 1 for normal underscore, 2 for double
                   underscore, 3 for curly underscore, 4 for dotted
                   underscore and 5 for dashed underscore.
    
           _Setulc_ , _Setulc1, ol_
                   Set the underscore colour or reset to the default.  _Setulc_
                   is for RGB colours and _Setulc1_ for ANSI or 256 colours.
                   The _Setulc_ argument is (red * 65536) + (green * 256) +
                   blue where each is between 0 and 255.
    
           _Ss_ , _Se_  Set or reset the cursor style.  If set, a sequence such as
                   this may be used to change the cursor to an underline:
    
                         $ printf '\033[4 q'
    
                   If _Se_ is not set, Ss with argument 0 will be used to reset
                   the cursor style instead.
    
           _Swd_     Set the opening sequence for the working directory
                   notification.  The sequence is terminated using the
                   standard _fsl_ capability.
    
           _Sxl_     Indicates that the terminal supports SIXEL.
    
           _Sync_    Start (parameter is 1) or end (parameter is 2) a
                   synchronized update.
    
           _Tc_      Indicate that the terminal supports the ‘direct colour’
                   RGB escape sequence (for example, \e[38;2;255;255;255m).
    
                   If supported, this is used for the initialize colour
                   escape sequence (which may be enabled by adding the
                   ‘initc’ and ‘ccc’ capabilities to the **tmux** _terminfo_(5)
                   entry).
    
                   This is equivalent to the _RGB terminfo_(5) capability.
    
           _Ms_      Store the current buffer in the host terminal's selection
                   (clipboard).  See the _set-clipboard_ option above and the
                   _xterm_(1) man page.
    
           _XT_      This is an existing extension capability that tmux uses to
                   mean that the terminal supports the _xterm_(1) title set
                   sequences and to automatically set some of the
                   capabilities above.
    


## CONTROL MODE



           **tmux** offers a textual interface called _control mode_.  This allows
           applications to communicate with **tmux** using a simple text-only
           protocol.
    
           In control mode, a client sends **tmux** commands or command sequences
           terminated by newlines on standard input.  Each command will
           produce one block of output on standard output.  An output block
           consists of a _%begin_ line followed by the output (which may be
           empty).  The output block ends with a _%end_ or _%error_.  _%begin_ and
           matching _%end_ or _%error_ have three arguments: an integer time (as
           seconds from epoch), command number and flags (currently not
           used).  For example:
    
                 %begin 1363006971 2 1
                 0: ksh* (1 panes) [80x24] [layout b25f,80x24,0,0,2] @2 (active)
                 %end 1363006971 2 1
    
           The **refresh-client -C** command may be used to set the size of a
           client in control mode.
    
           In control mode, **tmux** outputs notifications.  A notification will
           never occur inside an output block.
    
           The following notifications are defined:
    
           **%client-detached** _client_
                   The client has detached.
    
           **%client-session-changed** _client session-id name_
                   The client is now attached to the session with ID
                   _session-id_ , which is named _name_.
    
           **%config-error** _error_
                   An error has happened in a configuration file.
    
           **%continue** _pane-id_
                   The pane has been continued after being paused (if the
                   _pause-after_ flag is set, see **refresh-client -A**).
    
           **%exit**[_reason_]
                   The **tmux** client is exiting immediately, either because it
                   is not attached to any session or an error occurred.  If
                   present, _reason_ describes why the client exited.
    
           **%extended-output** _pane-id age ..._ : _value_
                   New form of **%output** sent when the _pause-after_ flag is set.
                   _age_ is the time in milliseconds for which tmux had
                   buffered the output before it was sent.  Any subsequent
                   arguments up until a single ‘:’ are for future use and
                   should be ignored.
    
           **%layout-change** _window-id window-layout window-visible-layout_
                   _window-flags_
                   The layout of a window with ID _window-id_ changed.  The new
                   layout is _window-layout_.  The window's visible layout is
                   _window-visible-layout_ and the window flags are
                   _window-flags_.
    
           **%message** _message_
                   A message sent with the **display-message** command.
    
           **%output** _pane-id value_
                   A window pane produced output.  _value_ escapes non-
                   printable characters and backslash as octal \xxx.
    
           **%pane-mode-changed** _pane-id_
                   The pane with ID _pane-id_ has changed mode.
    
           **%paste-buffer-changed** _name_
                   Paste buffer _name_ has been changed.
    
           **%paste-buffer-deleted** _name_
                   Paste buffer _name_ has been deleted.
    
           **%pause** _pane-id_
                   The pane has been paused (if the _pause-after_ flag is set).
    
           **%session-changed** _session-id name_
                   The client is now attached to the session with ID
                   _session-id_ , which is named _name_.
    
           **%session-renamed** _name_
                   The current session was renamed to _name_.
    
           **%session-window-changed** _session-id window-id_
                   The session with ID _session-id_ changed its active window
                   to the window with ID _window-id_.
    
           **%sessions-changed**
                   A session was created or destroyed.
    
           **%subscription-changed** _name session-id window-id window-index_
                   _pane-id ..._ : _value_
                   The value of the format associated with subscription _name_
                   has changed to _value_.  See **refresh-client -B**.  Any
                   arguments after _pane-id_ up until a single ‘:’ are for
                   future use and should be ignored.
    
           **%unlinked-window-add** _window-id_
                   The window with ID _window-id_ was created but is not linked
                   to the current session.
    
           **%unlinked-window-close** _window-id_
                   The window with ID _window-id_ , which is not linked to the
                   current session, was closed.
    
           **%unlinked-window-renamed** _window-id_
                   The window with ID _window-id_ , which is not linked to the
                   current session, was renamed.
    
           **%window-add** _window-id_
                   The window with ID _window-id_ was linked to the current
                   session.
    
           **%window-close** _window-id_
                   The window with ID _window-id_ closed.
    
           **%window-pane-changed** _window-id pane-id_
                   The active pane in the window with ID _window-id_ changed to
                   the pane with ID _pane-id_.
    
           **%window-renamed** _window-id name_
                   The window with ID _window-id_ was renamed to _name_.
    


## ENVIRONMENT



           When **tmux** is started, it inspects the following environment
           variables:
    
           EDITOR    If the command specified in this variable contains the
                     string ‘vi’ and VISUAL is unset, use vi-style key
                     bindings.  Overridden by the **mode-keys** and **status-keys**
                     options.
    
           HOME      The user's login directory.  If unset, the _passwd_(5)
                     database is consulted.
    
           LC_CTYPE  The character encoding _locale_(1).  It is used for two
                     separate purposes.  For output to the terminal, UTF-8 is
                     used if the **-u** option is given or if LC_CTYPE contains
                     "UTF-8" or "UTF8".  Otherwise, only ASCII characters are
                     written and non-ASCII characters are replaced with
                     underscores (‘_’).  For input, **tmux** always runs with a
                     UTF-8 locale.  If en_US.UTF-8 is provided by the
                     operating system, it is used and LC_CTYPE is ignored for
                     input.  Otherwise, LC_CTYPE tells **tmux** what the UTF-8
                     locale is called on the current system.  If the locale
                     specified by LC_CTYPE is not available or is not a UTF-8
                     locale, **tmux** exits with an error message.
    
           LC_TIME   The date and time format _locale_(1).  It is used for
                     locale-dependent _strftime_(3) format specifiers.
    
           PWD       The current working directory to be set in the global
                     environment.  This may be useful if it contains symbolic
                     links.  If the value of the variable does not match the
                     current working directory, the variable is ignored and
                     the result of _getcwd_(3) is used instead.
    
           SHELL     The absolute path to the default shell for new windows.
                     See the **default-shell** option for details.
    
           TMUX_TMPDIR
                     The parent directory of the directory containing the
                     server sockets.  See the **-L** option for details.
    
           VISUAL    If the command specified in this variable contains the
                     string ‘vi’, use vi-style key bindings.  Overridden by
                     the **mode-keys** and **status-keys** options.
    


## FILES



           _~/.tmux.conf_
           _$XDG_CONFIG_HOME/tmux/tmux.conf_
           _~/.config/tmux/tmux.conf_   Default **tmux** configuration file.
           _@SYSCONFDIR@/tmux.conf_     System-wide configuration file.
    


## EXAMPLES



           To create a new **tmux** session running _vi_(1):
    
                 **$ tmux new-session vi**
    
           Most commands have a shorter form, known as an alias.  For new-
           session, this is **new** :
    
                 **$ tmux new vi**
    
           Alternatively, the shortest unambiguous form of a command is
           accepted.  If there are several options, they are listed:
    
                 $ tmux n
                 ambiguous command: n, could be: new-session, new-window, next-window
    
           Within an active session, a new window may be created by typing
           ‘C-b c’ (Ctrl followed by the ‘b’ key followed by the ‘c’ key).
    
           Windows may be navigated with: ‘C-b 0’ (to select window 0), ‘C-b
           1’ (to select window 1), and so on; ‘C-b n’ to select the next
           window; and ‘C-b p’ to select the previous window.
    
           A session may be detached using ‘C-b d’ (or by an external event
           such as _ssh_(1) disconnection) and reattached with:
    
                 **$ tmux attach-session**
    
           Typing ‘C-b ?’ lists the current key bindings in the current
           window; up and down may be used to navigate the list or ‘q’ to
           exit from it.
    
           Commands to be run when the **tmux** server is started may be placed
           in the _~/.tmux.conf_ configuration file.  Common examples include:
    
           Changing the default prefix key:
    
                 set-option -g prefix C-a
                 unbind-key C-b
                 bind-key C-a send-prefix
    
           Turning the status line off, or changing its colour:
    
                 set-option -g status off
                 set-option -g status-style bg=blue
    
           Setting other options, such as the default command, or locking
           after 30 minutes of inactivity:
    
                 set-option -g default-command "exec /bin/ksh"
                 set-option -g lock-after-time 1800
    
           Creating new key bindings:
    
                 bind-key b set-option status
                 bind-key / command-prompt "split-window 'exec man %%'"
                 bind-key S command-prompt "new-window -n %1 'ssh %1'"
    


* * *