Question: Why does man print gimme gimme gimme at 00:30?


Question: What is the exact difference between a terminal, a shell, a tty and a console?


Question: How do I get the size of a directory on the command line?


Question: How to correctly add a path to PATH?


Question: How to install a deb file, by dpkg -i or by apt?


Question: How to copy files from one machine to another using ssh


Question: How can I replace a string in a file(s)?


Question: How to unfreeze after accidentally pressing Ctrl-S in a terminal?


Question: Why was ~ chosen to represent the home directory?


Question: How do I grep for multiple patterns with pattern having a pipe character?


Question: What is the purpose of the lost+found folder in Linux and Unix?


Question: How do I make `ls` show file sizes in megabytes?


Question: Difference between nohup, disown and &


Question: How to see full log from systemctl status service?


Question: How to run find -exec?


Question: Tracking down where disk space has gone on Linux?


Question: What does -- (double-dash) mean?


Question: How to cycle through reverse-i-search in BASH?


Question: Why is printf better than echo?


Question: How do I zip/unzip on the unix command line?


Question: Preserve bash history in multiple terminal windows


Question: How to switch between users on one terminal?


Question: What do the numbers in a man page mean?


Question: Zip all files in directory?


Question: Why am I still getting a password prompt with ssh with public key authentication?


Question: Using ${a:-b} for variable assignment in scripts


Question: /usr/bin vs /usr/local/bin on Linux


Question: Why is it better to use #!/usr/bin/env NAME instead of #!/path/to/NAME as my shebang?


Question: Does curl have a --no-check-certificate option like wget?


Question: Repeat a Unix command every x seconds forever


Question: How can I reduce a videos size with ffmpeg?


Question: What if kill -9 does not work?


Question: Finding the PID of the process using a specific port?


Question: How to force ssh client to use only password auth?


Question: What is the difference between /opt and /usr/local?


Question: Scroll inside Screen, or Pause Output


Question: How to get execution time of a script effectively?


Question: How can I resolve a hostname to an IP address in a Bash script?


Question: How to display `top` results sorted by memory usage in real time?


Question: How do I check package version using apt-get / aptitude?


Question: Can I zip an entire folder using gzip?


Question: How do I copy a folder keeping owners and permissions intact?


Question: Turn off buffering in pipe


Question: Can less retain colored output?


Question: What is a bind mount?


Question: How to forward X over SSH to run graphics applications remotely?


Question: How to append multiple lines to a file


Question: Execute vs Read bit. How do directory permissions in Linux work?


Question: Can grep output only specified groupings that match?


Question: recursive mkdir


Question: How to conditionally do something if a command succeeded or failed


Question: What is the difference between the Bash operators [[ vs [ vs ( vs ((?


Question: Difference between Login Shell and Non-Login Shell?


Question: How does reverse SSH tunneling work?


Question: How do I remove a user from a group?


Question: How do I delete a file whose name begins with - (hyphen a.k.a. dash or minus)?


Question: Why not use which? What to use then?


Question: When should I not kill -9 a process?


Question: How can I pass a command line argument into a shell script?


Question: refresh changed content of file opened in vi(m)


Question: What does LC_ALL=C do?


Question: What are the pros and cons of Vim and Emacs?


Question: How do I use pushd and popd commands?


Question: In Bash, when to alias, when to script, and when to write a function?


Question: How can I run a command which will survive terminal close?


Question: How to clear journalctl


Question: Delete from cursor to end of line in `vi`


Question: Using sed to find and replace


Question: Get exit status of process thats piped to another


Question: How do I loop through only directories in bash?


Question: What is the difference between curl and wget?


Question: How to copy a file from a remote server to a local machine?


Question: How to generate a random string?


Question: How can I find the implementations of Linux kernel system calls?


Question: Ctrl-s hangs the terminal emulator?


Question: How to do integer & float calculations, in bash or other languages/frameworks?


Question: How to check OS and version using a Linux command


Question: How do you empty the buffers and cache on a Linux system?


Question: How can I prevent grep from showing up in ps results?


Question: finds -exec rm {} \; vs -delete


Question: How can I use sed to replace a multi-line string?


Question: What are the shells control and redirection operators?


Question: How can I find broken symlinks


Question: Compress a folder with tar?


Question: How can I delete all lines in a file using vi?


Question: What characters do I need to escape when using sed in a sh script?


Question: Remove all files/directories except for one file


Question: Why does my shell script choke on whitespace or other special characters?


Question: What DNS servers am I using?


Question: How do I set my DNS when resolv.conf is being overwritten?


Question: How can I get the size of a file in a bash script?


Question: Does curl have a timeout?


Question: In a bash script, using the conditional or in an if statement


Question: What is the fastest way to view images from the terminal?


Question: GPU usage monitoring (CUDA)


Question: How to get over device or resource busy?


Question: How can I monitor disk io?


Question: Specify identity file (id_rsa) with rsync


Question: How do I clear Bashs cache of paths to executables?


Question: How to list all files ordered by size


Question: Whats the story behind Super Cow Powers?


Question: What does rc in .bashrc stand for?


Question: How to set default file permissions for all folders/files in a directory?


Question: Count total number of occurrences using grep


Question: How can I get my external IP address in a shell script?


Question: How to get the pid of the last executed command in shell script?


Question: How to list keys added to ssh-agent with ssh-add?


Question: Is it possible to see cp speed and percent copied?


Question: How to colorize output of git?


Question: Copy a file back to local system with ssh


Question: How to split the terminal into more than one view?


Question: Hide curl output


Question: How to view the output of a running process in another bash session?


Question: How can I run ssh-add automatically, without a password prompt?


Question: How to define tab delimiter with cut in BASH?


Question: How to have tail -f show colored output


Question: What do the fields in ls -al output mean?


Question: What is the difference between `grep`, `egrep`, and `fgrep`?


Question: How to know number of cores of a system in Linux?


Question: How to permanently set environmental variables


Question: How can I instruct yum to install a specific version of package X?


Question: How can I test if a variable is empty or contains only spaces?


Question: How do I change the extension of multiple files?


Question: Write all tmux scrollback to a file


Question: How to remove a single line from history?


Question: Colorizing your terminal and shell environment?


Question: Whats the difference between $(stuff) and `stuff`?


Question: Prepending a timestamp to each line of output from a command


Question: How do I equally balance tmux(1) split panes?


Question: Better colors so comments arent dark blue in Vim?


Question: What should/shouldnt go in .zshenv, .zshrc, .zlogin, .zprofile, .zlogout?


Question: How can I get a count of files in a directory using the command line?


Question: How to check how long a process has been running?


Question: Moving tmux pane to window


Question: How to know whether Wayland or X11 is being used


Question: Why doesnt my Bash script recognize aliases?


Question: How does a Segmentation Fault work under-the-hood?


Question: List available updates but do not install them


Question: How to avoid being asked passphrase each time I push to Bitbucket


Question: What are the differences between most, more and less?


Question: What is the real difference between apt-get and aptitude? (How about wajig?)


Question: How do I set an environment variable on the command line and have it appear in commands?


Question: How can I make Press any key to continue


Question: How do I find out what hard disks are in the system?


Question: How do I trim leading and trailing whitespace from each line of some output?


Question: Whats the point in adding a new line to the end of a file?


Question: How to terminate a background process?


Question: Keep processes running after SSH session disconnects


Question: Convince apt-get *not* to use IPv6 method


Question: What is the eval command in bash?


Question: How to reload udev rules without reboot?


Question: How to know if a disk is an SSD or an HDD


Question: How to go to the previous working directory in terminal?


Question: Change the Python3 default version in Ubuntu


Question: How to write startup script for Systemd?


Question: Most efficient method to empty the contents of a file


Question: View stdout/stderr of systemd service


Question: How can I update to a newer version of Git using apt-get?


Question: How can I get the current working directory?


Question: How to monitor CPU/memory usage of a single process?


Question: Can rsync resume after being interrupted?


Question: Multiple similar entries in ssh config


Question: Sort and count number of occurrence of lines


Question: Whats ssh port forwarding and whats the difference between ssh local and remote port forwarding


Question: Recursively delete all files with a given extension


Question: How do I convert an epoch timestamp to a human readable format on the cli?


Question: How to display meminfo in megabytes in top?


Question: Where did the wheel group get its name?


Question: Why *not* parse `ls` (and what to do instead)?


Question: Why is FreeBSD deprecating GCC in favor of Clang/LLVM?


Question: how can I make cron run a job right now, for testing/debugging? without changing the schedule!


Question: Kernel inotify watch limit reached


Question: How to create a new window on the current directory in tmux?


Question: What does env x=() { :;}; command bash do and why is it insecure?


Question: What is `^M` and how do I get rid of it?


Question: How can I send stdout to multiple commands?


Question: Delete the last character of a string using string manipulation in shell script


Question: How to tell gzip to keep original file?


Question: How create a temporary file in shell script?


Question: What do the flags in /proc/cpuinfo mean?


Question: SSH tunneling error: channel 1: open failed: administratively prohibited: open failed


Question: Why is using a shell loop to process text considered bad practice?


Question: Security implications of forgetting to quote a variable in bash/POSIX shells


Question: How to import secret gpg key (copied from one machine to another)?


Question: How to add a newline to the end of a file?


Question: Difference between 2>&-, 2>/dev/null, |&, &>/dev/null and >/dev/null 2>&1


Question: How do you sort du output by size?


Question: Efficiently delete large directory containing thousands of files


Question: Can I create a user-specific hosts file to complement /etc/hosts?


Question: Why do I need a tty to run sudo if I can sudo without a password?


Question: Get file created/creation time?


Question: How can get a list of all scheduled cron jobs on my machine?


Question: Linux top command: What are us, sy, ni, id, wa, hi, si and st (for CPU usage)?


Question: How can I get distribution name and version number in a simple shell script?


Question: Why does `htop` show more process than `ps`


Question: List all connected SSH sessions?


Question: What is the meaning of IFS=$\n in bash scripting?


Question: What is the purpose of .bashrc and how does it work?


Question: redirecting to /dev/null


Question: How to suspend and bring a background process to foreground


Question: How to change where a symlink points


Question: Why is ls suddenly wrapping items with spaces in single quotes?


Question: Execute a command once per line of piped input?


Question: What makes grep consider a file to be binary?


Question: Why are tar archive formats switching to xz compression to replace bzip2 and what about gzip?


Question: Cant resume screen, says I am already attached?


Question: how can I recursively delete empty directories in my home directory?


Question: Can I remove files in /var/log/journal and /var/cache/abrt-di/usr?


Question: Allow setuid on shell scripts


Question: Difference between cp -r and cp -a


Question: What does aux mean in `ps aux`?


Question: What does ` (backquote/backtick) mean in commands?


Question: How do I make my pc speaker beep


Question: Getting 256 colors to work in tmux


Question: Find command: how to ignore case?


Question: Find where inodes are being used


Question: How can I calculate the size of a directory?


Question: Find out current working directory of a running process?


Question: VISUAL vs. EDITOR – what’s the difference?


Question: How to determine where an environment variable came from?


Question: Unzipping a .gz file without removing the gzipped file


Question: What does etc stand for?


Question: What do options `ServerAliveInterval` and `ClientAliveInterval` in sshd_config do exactly?


Question: What is the working directory when cron executes a job?


Question: How can I display the contents of a text file on the command line?


Question: How can I edit multiple files in VIM?


Question: Any reason NOT to run Linux in a VM all the time?


Question: Is there a one-liner that allows me to create a directory and move into it at the same time?


Question: umount: device is busy. Why?


Question: Extract only a specific file from a zipped archive to a given directory


Question: scp without replacing existing files in the destination


Question: Markdown Viewer


Question: Terminal prompt not wrapping correctly


Question: linux: How can I view all UUIDs for all available disks on my system?


Question: How do I get the MD5 sum of a directorys contents as one sum?


Question: What causes this green background in ls output?


Question: How to fill 90% of the free memory?


Question: Find the total size of certain files within a directory branch


Question: How to use find command to search for multiple extensions


Question: How to install Desktop Environments on CentOS 7?


Question: Whats the difference between /sbin/nologin and /bin/false


Question: There are stopped jobs (on bash exit)


Question: How to rsync only new files


Question: Limit memory usage for a single Linux process


Question: How can I grep in PDF files?


Question: How to move and overwrite subdirectories (and files) to parent directory?


Question: How to run a specific program as root without a password prompt?


Question: How to get the complete and exact list of mounted filesystems in Linux?


Question: Where are cron errors logged?


Question: Why do we use su - and not just su?


Question: delete line in vi


Question: How to scroll in a terminal using keyboard?


Question: Is Linux a Unix?


Question: What is the difference between Docker, LXD, and LXC


Question: tmux vs. GNU Screen


Question: Where are Apache file access logs stored?


Question: How to delete directories based on `find` output?


Question: Whats the difference between semicolon and double ampersand &&


Question: Do the parent directorys permissions matter when accessing a subdirectory?


Question: Merging folders with mv?


Question: The proper way to test if a service is running in a script


Question: Failed to fetch jessie backports repository


Question: Can grep return true/false or are there alternative methods


Question: How can I populate a file with random data?


Question: Why is looping over finds output bad practice?


Question: How to recursively find the amount stored in directory?


Question: Passing named arguments to shell scripts


Question: How do you move all files (including hidden) from one directory to another?


Question: How can I delete a word backward at the command line (bash and zsh)?


Question: How to skip permission denied errors when running find in Linux?


Question: Is your SSH password revealed when you attempt to connect to the wrong server?


Question: How can I set vi as my default editor in UNIX?


Question: What are the pros/cons of Upstart and systemd?


Question: Run a command that is shadowed by an alias


Question: Combined `mkdir` and `cd`?


Question: How can I see dmesg output as it changes?


Question: Looping through files with spaces in the names?


Question: How to use wildcards (*) when copying with scp?


Question: How to remove all empty directories in a subtree?


Question: Delete files older than X days +


Question: $VAR vs ${VAR} and to quote or not to quote


Question: ifconfig command not found


Question: ssh-add complains: Could not open a connection to your authentication agent


Question: How to debug a bash script?


Question: How do I remove a directory and all its contents?


Question: Timezone setting in Linux


Question: Sort based on the third column


Question: Copy text from one tmux pane to another (using vim)


Question: What are the pros/cons of deb vs. rpm?


Question: How to check if a shell is login/interactive/batch


Question: Move folder content up one level


Question: Open `less` scrolled to the end


Question: Batch renaming files


Question: How can I disown a running process and associate it to a new screen shell?


Question: ssh-add is not persistent between reboots


Question: do changes in /etc/security/limits.conf require a reboot?


Question: Parallelize a Bash FOR Loop


Question: Pass the output of previous command to next as an argument


Question: tar: Removing leading `/ from member names


Question: How to clean log file?


Question: Script to monitor folder for new files?


Question: How to suspend and resume processes


Question: Rsync filter: copying one pattern only


Question: How can I add a signature .png to a PDF in Linux?


Question: Simple command line HTTP server


Question: How to copy-merge two directories?


Question: How can I wrap text at a certain column size?


Question: Can I redirect output to a log file and background a process at the same time?


Question: What does <<< mean?


Question: Are there naming conventions for variables in shell scripts?


Question: Creating diagrams in ASCII


Question: How to put current line at top/center/bottom of screen in vim?


Question: Trying to SSH to local VM Ubuntu with Putty


Question: remove particular characters from a variable using bash


Question: Is CentOS exactly the same as RHEL?


Question: What is the purpose of using shift in shell scripts?


Question: What color codes can I use in my PS1 prompt?


Question: How do I determine the number of RAM slots in use?


Question: Quoting within $(command substitution) in Bash


Question: Precedence of the shell logical operators &&, ||


Question: Is there an easy way to replace duplicate files with hardlinks?


Question: I deleted /bin/rm. How do I recover it?


Question: Why would someone choose FreeBSD over Linux?


Question: List files sorted numerically


Question: Executing chdir before starting systemd service


Question: What is the point of Ctrl-S?


Question: How to list disks, partitions and filesystems in Linux?


Question: Viewing all iptables rules


Question: cat line X to line Y on a huge file


Question: How do you extract a single folder from a large tar.gz archive?


Question: How to remove duplicate lines inside a text file?


Question: Whats the difference between a normal user and a system user?


Question: In CentOS, what is the difference between yum update and yum upgrade?


Question: How to redirect output of wget as input to unzip?


Question: Human readable memory sizes in top?


Question: Renumbering windows in tmux


Question: Unix/Linux undelete/recover deleted files


Question: How do I write a retry logic in script to keep retrying to run it upto 5 times?


Question: How to extract specific file(s) from tar.gz


Question: Copy specific file type keeping the folder structure


Question: Easily unpack DEB, edit postinst, and repack DEB


Question: How to stop the find command after first match?


Question: Using the not equal operator for string comparison


Question: Good detailed explanation of /etc/network/interfaces syntax?


Question: How can I execute `date` inside of a cron tab job?


Question: How to find out from the logs what caused system shutdown?


Question: Is there a way to dynamically refresh the less command?


Question: How to make `sudo` preserve $PATH?


Question: How to choose directory name during untarring


Question: How to chmod without /usr/bin/chmod?


Question: What does >/dev/null 2>&1 mean in this article of crontab basics?


Question: How to uppercase the command line argument?


Question: How to enable diffie-hellman-group1-sha1 key exchange on Debian 8.0?


Question: Finding all large files in the root filesystem


Question: How do I grep recursively through .gz files?


Question: Is there a way to redirect nohup output to a log file other than nohup.out?


Question: How big is the pipe buffer?


Question: Bash: What does >| do?


Question: Return only the portion of a line after a matching pattern


Question: How do I set a user environment variable? (permanently, not session)


Question: Linux: Difference between /dev/console , /dev/tty and /dev/tty0


Question: How do I remove the first 300 million lines from a 700 GB txt file on a system with 1 TB disk space?


Question: Temporarily suspend bash_history on a given shell?


Question: What to do when a Linux desktop freezes?


Question: Sorting down processes by memory usage


Question: How does the sticky bit work?


Question: Zip the contents of a folder without including the folder itself


Question: Run a command without making me wait


Question: Using sed to find and replace complex string (preferrably with regex)


Question: GUI for GIT similar to SourceTree


Question: Where do executables look for shared objects at runtime?


Question: What is the difference between /tmp and /var/tmp?


Question: Determine the size of a block device


Question: Why is number of open files limited in Linux?


Question: How can I have `date` output the time from a different timezone?


Question: no public key available on apt-get update


Question: How to download portion of video with youtube-dl command?


Question: How to start tmux with attach if a session exists


Question: How is Mono magical?


Question: How to uncompress zlib data in UNIX?


Question: How do I do a ls and then sort the results by date created?


Question: How can I move files and view the progress (e.g. with a progress bar)?


Question: Is it possible to find out the hosts in the known_hosts file?


Question: How do I read from /proc/$pid/mem under Linux?


Question: Why does find -mtime +1 only return files older than 2 days?


Question: How do I add X days to date and get new date?


Question: Why use swap when there is more than enough free space in RAM?


Question: Fix terminal after displaying a binary file


Question: Determine if Git working directory is clean from a script


Question: How does systemd use /etc/init.d scripts?


Question: How do I know if dd is still working?


Question: Generate File of a certain size?


Question: What is the difference between modify and change in stat command context?


Question: Is there any way to execute commands from history?


Question: Make all new files in a directory accessible to a group


Question: What exactly is POSIX?


Question: Too many levels of symbolic links


Question: How to run a program in a clean environment in bash?


Question: Split string by delimiter and get N-th element


Question: Delete First line of a file


Question: How to add repository from shell in Debian?


Question: List only regular files (but not directories) in current directory


Question: How to redirect output to a file from within cron?


Question: What is the Fedora equivalent of the Debian build-essential package?


Question: In Arch Linux how can I find out which package to install that will contain file X?


Question: Copy-Paste in xfce4-terminal adds 0~ and 1~


Question: What does the @ mean in ls -l?


Question: How to make a machine accessible from the LAN using its hostname


Question: What is the difference between sort -u and sort | uniq?


Question: How can I check if swap is active from the command line?


Question: locate vs find: usage, pros and cons of each other


Question: What does the .d stand for in directory names?


Question: How to create nested directory in a single command?


Question: Cant use exclamation mark (!) in bash?


Question: How to find applications path from command line?


Question: How can I count the number of lines of a file with common tools?


Question: How do I delete the first n lines of an ascii file using shell commands?


Question: How do I limit the number of files printed by ls?


Question: When is double-quoting necessary?


Question: dd vs cat -- is dd still relevant these days?


Question: How do I unset a variable at the command line?


Question: What does ampersand mean at the end of a shell script line?


Question: Automated ssh-keygen without passphrase, how?


Question: How to disable auto suspend when I close laptop lid?


Question: Can I configure my Linux system for more aggressive file system caching?


Question: Whats the recommended way of copying changes with vimdiff?


Question: How to get only files created after a date with ls?


Question: How can I run a cron command with existing environmental variables?


Question: How can I execute local script on remote machine and include arguments?


Question: Understanding of diff output


Question: diff within a line


Question: How to determine Linux kernel architecture?


Question: Mount cifs Network Drive: write permissions and chown


Question: What is a Superblock, Inode, Dentry and a File?


Question: How do SO (shared object) numbers work?


Question: Can I watch the progress of a `sync` operation?


Question: how can I add (subtract, etc.) two numbers with bash?


Question: Find and remove large files that are open but have been deleted


Question: The myths about malware in Unix / Linux


Question: Where should I put software I compile myself?


Question: Have backticks (i.e. `cmd`) in *sh shells been deprecated?


Question: How to move all files and folders via mv command


Question: How can I fix cannot find a valid baseurl for repo errors on CentOS?


Question: Usage of dash (-) in place of a filename


Question: Exit vim more quickly


Question: Clone ownership and permissions from another file?


Question: When is xargs needed?


Question: Why does Vim indent pasted code incorrectly?


Question: Convince grep to output all lines, not just those with matches


Question: How to combine 2 -name conditions in find?


Question: date command --iso-8601 option


Question: How to see process created by specific user in Unix/linux


Question: How do I repeat the last command without using the arrow keys?


Question: Get the chmod numerical value for a file


Question: How to remove an audio track from an mp4 video file?


Question: How to XZ a directory with TAR using maximum compression?


Question: How to export variables from a file?


Question: Bluetooth Pairing on Dual Boot of Windows & Linux Mint/Ubuntu - Stop having to Pair Devices


Question: Keyboard set to cat mode


Question: How to kill a runaway cat?


Question: How to monitor only the last n lines of a log file?


Question: Can scp create a directory if it doesnt exist?


Question: Why are hard links to directories not allowed in UNIX/Linux?


Question: Bash - how to run a command after the previous finished?


Question: Manually generate password for /etc/shadow


Question: Download using wget to a different directory than current directory


Question: grep returns Binary file (standard input) matches when trying to find a string pattern in file


Question: Combine the output of two commands in bash


Question: Use scp to transfer a file from local directory X to remote directory Y


Question: Pass command line arguments to bash script


Question: How to make log-rotate change take effect


Question: chroot jail - what is it and how do I use it?


Question: Why is cd not a program?


Question: What does the Broken pipe message mean in an SSH session?


Question: Difference between pts and tty


Question: How can I do a change word in Vim using the current paste buffer?


Question: apache2 Invalid command SSLEngine


Question: How to apt-delete-repository?


Question: Any way to encode the url in curl command?


Question: Trying to sort on two fields, second then first


Question: How do I find on which physical device a folder is located?


Question: How do we specify multiple ignore patterns for `tree` command?


Question: Show top five CPU consuming processes with `ps`


Question: File permission issues with shared folders under Virtual Box (Ubuntu Guest, Windows Host)


Question: Decoding URL encoding (percent encoding)


Question: Where do I put my systemd unit file?


Question: Why isnt Linux embraced as the official GNU kernel?


Question: How to comment multiple lines at once?


Question: The name > org.freedesktop.PolicyKit1 was not provided by any .service files


Question: Zip everything in current directory


Question: A standard tool to convert a byte-count into human KiB MiB etc; like du, ls1


Question: How to merge all (text) files in a directory into one?


Question: Where is bashs history stored?


Question: How to determine CentOS version?


Question: Whats the meaning of a dot before a command in shell?


Question: How do you detach the 2nd screen from within another screen?


Question: How does Linux handle multiple consecutive path separators (/home////username///file)?


Question: Where do files go when the rm command is issued?


Question: How do I know if a partition is ext2, ext3, or ext4?


Question: Understanding the exclamation mark (!) in bash


Question: When to use /dev/random vs /dev/urandom


Question: Can I export functions in bash?


Question: What is the purpose of the hash command?


Question: Which is the safest way to get root privileges: sudo, su or login?


Question: Replace string in a huge (70GB), one line, text file


Question: How do I attach a terminal to a detached process?


Question: Is there a tool to get the lines in one file that are not in another?


Question: How can I set my default shell to start up tmux


Question: How to do I convert an animated gif to an mp4 or mv4 on the command line?


Question: Throttle the download speed of wget or curl while downloading


Question: Quick directory navigation in the bash shell


Question: Why are there so many different ways to measure disk usage?


Question: Is there a way to see details of all the threads that a process has in Linux?


Question: -bash: sudo: command not found


Question: How can I find the hardware model in Linux?


Question: How can I communicate with a Unix domain socket via the shell on Debian Squeeze?


Question: How does the OOM killer decide which process to kill first?


Question: What is the difference between && and ; when chaining commands


Question: What does the @ (at) symbol mean on OSX ls?


Question: With the Linux cat command, how do I show only certain lines by number


Question: Adding a self-signed certificate to the trusted list


Question: Download only format mp4 on youtube-dl


Question: Do parentheses really put the command in a subshell?


Question: Is there a .bashrc equivalent file read by all shells?


Question: Attach to different windows in session


Question: Username is not in the sudoers file. This incident will be reported


Question: Argument string to integer in bash


Question: How to find out the dynamic libraries executables loads when run?


Question: How to install Python 3.6?


Question: Cause a script to execute after networking has started?


Question: Redirecting stdout to a file you dont have write permission on


Question: How can I tell what version of Linux Im using?


Question: Day of week {0-7} in crontab has 8 options, but we have only 7 days in a week


Question: Getting tmux to copy a buffer to the clipboard


Question: Easy way to determine the virtualization technology of a Linux machine?


Question: What are other ways to share a tmux session between two users?


Question: How to do a `tail -f` of log rotated files?


Question: How to connect to a serial port as simple as using SSH?


Question: How to copy all files from a directory to a remote directory using scp?


Question: How to get full path of original file of a soft symbolic link?


Question: How can I use ffmpeg to split MPEG video into 10 minute chunks?


Question: Is there a way to get the min, max, median, and average of a list of numbers in a single command?


Question: What is the need for `fakeroot` command in linux


Question: List packages on an apt based system by installation date


Question: How do I remotely edit files via ssh?


Question: Pseudo files for temporary data


Question: What does the Windows flag in the Linux logo of kernel 3.11 mean?


Question: What is yum equivalent of apt-get update?


Question: Kill an unresponsive ssh session without closing the terminal


Question: When was the shellshock (CVE-2014-6271/7169) bug introduced, and what is the patch that fully fixes it?


Question: How to find creation date of file?


Question: What is the difference between reboot , init 6 and shutdown -r now?


Question: Copy the contents of a file into the clipboard without displaying its contents


Question: How do I pass a list of files to grep


Question: How to grep standard error stream (stderr)?


Question: What are pseudo terminals (pty/tty)?


Question: How to run a command without hitting Enter Key?


Question: Why is echo so much faster than touch?


Question: ssh_exchange_identification: read: Connection reset by peer


Question: How to show the filesystem type via the terminal?


Question: bash - replace space with new line


Question: If you ^Z from a process, it gets stopped. How do you switch back in?


Question: Forward SIGTERM to child in Bash


Question: Why is swappiness set to 60 by default?


Question: Cron vs systemd timers


Question: difference between function foo() {} and foo() {}


Question: Confusing use of && and || operators


Question: Get SSH server key fingerprint


Question: Recursive glob?


Question: What is the difference between $* and $@?


Question: ^x^y unix trick for all instances in last command?


Question: mount: wrong fs type, bad option, bad superblock


Question: How do I clear the terminal History?


Question: Quickly calculate date differences


Question: List partition labels from the command line


Question: GPT or MBR: How do I know?


Question: Sorting the output of find -print0 by piping to the sort command


Question: How can I start the python SimpleHTTPServer on port 80?


Question: How do I find how long ago a Linux system was installed?


Question: Difference between /bin and /usr/bin


Question: Why is the Linux kernel 15+ million lines of code?


Question: How are /dev Linux files created?


Question: How to follow links in linux man pages?


Question: On what systems is //foo/bar different from /foo/bar?


Question: How to open rar file in linux?


Question: SSH Key Permissions chmod settings?


Question: How do I kill all screens?


Question: How to run grep with multiple AND patterns?


Question: Getting new files to inherit group permissions on Linux


Question: last time file opened


Question: How to check if there are no parameters provided to a command?


Question: How to sync two folders with command line tools?


Question: gpg: keyserver receive failed: No dirmngr


Question: Why is video tearing such a problem in Linux?


Question: Understanding the output of --info=progress2 from rsync


Question: What is the fastest way to send massive amounts of data between two computers?


Question: If Linux is only a kernel, then how were its first versions used (without distribution)?


Question: Why is there no Euro English locale?


Question: ssh_exchange_identification: Connection closed by remote host (not using hosts.deny)


Question: How to output only file names (with spaces) in ls -Al?


Question: Unable to locate package `docker-ce` on a 64bit ubuntu


Question: Writing basic systemd service files


Question: How to copy text from vim to an external program?


Question: What is a tainted kernel in Linux?


Question: What is this folder /run/user/1000?


Question: Understanding the -exec option of `find`


Question: Why is /dev/null a file? Why isnt its function implemented as a simple program?


Question: timestamp, modification time, and created time of a file


Question: Why do we need to fork to create new processes?


Question: Whats the most appropriate directory where to place files shared between users?


Question: Does tail read the whole file?


Question: Create a symbolic link relative to the current directory


Question: How can I monitor all outgoing requests/connections from my machine?


Question: How to compare two dates in a shell?


Question: How to insert text before the first line of a file?


Question: rm -rf all files and all hidden files without . & .. error


Question: Why is my ethernet interface called enp0s10 instead of eth0?


Question: Reserved space for root on a filesystem - why?


Question: Why does argv include the program name?


Question: Error using SCP: not a regular file


Question: How to escape quotes in shell?


Question: Shell scripting: -z and -n options with if


Question: exit tmux window without quitting the Terminal program


Question: What is mail, and how is it navigated?


Question: How can I remove the BOM from a UTF-8 file?


Question: Which installed software packages use the most disk space on Debian?


Question: How do you do a dry run of rm to see what files will be deleted?


Question: How to use watch command with a piped chain of commands/programs


Question: Watch YouTube videos in terminal


Question: How to renew an expired keypair with gpg


Question: Is Vim immune to copy-paste attack?


Question: SSH login with clear text password as a parameter?


Question: Why do we use ./ (dot slash) to execute a file in Linux/UNIX?


Question: What is /usr/local/bin?


Question: In linux, how to delete all files EXCEPT the pattern *.txt?


Question: How to export a GPG private key and public key to a file


Question: Why doesnt grep ignore binary files by default?


Question: What does the (!) mean after uptime on htop


Question: Vi vs vim, or, is there any reason why I would ever want to use vi?


Question: How to shrink root filesystem without booting a livecd


Question: What are high memory and low memory on Linux?


Question: Command line: How do you rotate a PDF file 90 degrees?


Question: How can I find out which users are in a group within Linux?


Question: Simple way to create a tunnel from one local port to another?


Question: Does the shebang determine the shell which runs the script?


Question: What is the benefit of compiling your own linux kernel?


Question: How to unzip a multipart (spanned) ZIP on Linux?


Question: Disable a users login without disabling the account


Question: Creating a GIF animation from PNG files


Question: What is the difference between Halt and Shutdown commands?


Question: tput setaf color table? How to determine color codes?


Question: In what order do piped commands run?


Question: How to insert text after a certain string in a file?


Question: How can I restart the SSH daemon on Ubuntu?


Question: How to count the number of a specific character in each line?


Question: How do I display log messages from previous boots under CentOS 7?


Question: How to rsync over ssh when directory names have spaces


Question: Is it possible to run ssh-copy-id on port other than 22?


Question: Is there a basic tutorial for grep, awk and sed?


Question: Does sort support sorting a file in-place, like `sed --in-place`?


Question: Process substitution and pipe


Question: Match exact string using grep


Question: How to create SHA512 password hashes on command line


Question: What does systemctl daemon-reload do?


Question: Uploading directories with sftp?


Question: Generate random numbers in specific range


Question: How to dd a remote disk using SSH on local machine and save to a local disk


Question: Is there any option with ls command that I see only the directories?


Question: How can I install the `ll` command on Mac OS X?


Question: How do I know which version of Debian Im running?


Question: Does `sl` ever show the current directory?


Question: How to find which processes are taking all the memory?


Question: what is the CentOS equivalent of /var/log/syslog (on Ubuntu)?


Question: Determining what process is bound to a port


Question: How do I find out which processes are preventing unmounting of a device?


Question: How to update Linux locate cache


Question: Where should a local executable be placed?


Question: Command-line completion from command history


Question: su vs sudo -s vs sudo -i vs sudo bash


Question: What happens when you mount over an existing folder with contents?


Question: Why ZSH ends a line with a highlighted percent symbol?


Question: Why does parameter expansion with spaces without quotes work inside double brackets [[ but not inside single brackets [?


Question: Why is there a big delay after entering a wrong password?


Question: What is the difference between cat file | ./binary and ./binary < file?


Question: How to grep lines which does not begin with # or ;?


Question: What is the difference between -m conntrack --ctstate and -m state --state


Question: Why is root login via SSH so bad that everyone advises to disable it?


Question: tmux status-bar corrupted after catting a binary file, how to reset?


Question: How do keyboard input and text output work?


Question: How can I make a script in /etc/init.d start at boot?


Question: How to determine the filesystem of an unmounted device?


Question: Setting /proc/sys/vm/drop_caches to clear cache


Question: How to get keycodes for xmodmap?


Question: Sorting files according to size recursively


Question: What do the scripts in /etc/profile.d do?


Question: How can we run a command stored in a variable?


Question: How can I create a message box from the command line?


Question: What are the systemctl options to List all failed units


Question: ulimit: difference between hard and soft limits


Question: Search for a previous command with the prefix I just typed


Question: convert webp to jpg error: no decode delegate for this image format and missing an image filename


Question: Remember a half-typed command while I check something


Question: List of available services


Question: Error when trying to connect to bluetooth speaker: `org.bluez.Error.Failed`


Question: How to add newlines into variables in bash script


Question: tmux bottom bar color change


Question: determining path to sourced shell script


Question: Find duplicate files


Question: What does it mean to have a $dollarsign-prefixed string in a script?


Question: Detect init system using the shell


Question: Why eval the output of ssh-agent?


Question: Why would I tar a single file?


Question: Command to list PostgreSQL user accounts?


Question: Set volume from terminal


Question: How to print only the duplicate values from a text file?


Question: Why is the root directory on a web server put by default in /var/www?


Question: On-the-fly monitoring HTTP requests on a network interface?


Question: Create a tar archive split into blocks of a maximum size


Question: Is Mac OS X UNIX?


Question: How do I use cut to separate by multiple whitespace?


Question: Chrome: DNS requests with random DNS names: malware?


Question: Whats the purpose of the randomart image for user (not host) SSH keys?


Question: Does cd . have use?


Question: How to check which GPU is active in Linux?


Question: How to solve the issue that a Terminal screen is messed up? (usually after a resizing)


Question: Convert file contents to lower case


Question: How to install dig on CentOS?


Question: How does tcp-keepalive work in ssh?


Question: How can I keep my SSH sessions from freezing?


Question: How to pass parameters to an alias?


Question: Long line wrapping in Nano


Question: Why can rm remove read-only files?


Question: How do you use output redirection in combination with here-documents and cat?


Question: How to make tmux count windows starting from 1 instead of 0?


Question: How can I find available network interfaces?


Question: tar --exclude doesnt exclude. Why?


Question: Multiline shell script comments - how does this work?


Question: How to copy the partition layout of a whole disk using standard tools


Question: What are correct permissions for /tmp ? I unintentionally set it all public recursively


Question: Press space to continue


Question: What is the difference between ~/.profile and ~/.bash_profile?


Question: Whats the difference between eval and exec?


Question: Birth is empty on ext4


Question: How do you use the command coproc in various shells?


Question: How to ssh to remote server using a private key?


Question: What is the right file permission for a .pem file to SSH and SCP


Question: su options - running command as another user


Question: grep on a variable


Question: How can I look up a username by id in linux?


Question: What technical details should a programmer of a web application consider before making the site public?


Question: Which hashing algorithm is best for uniqueness and speed?


Question: Where did the notion of one return only come from?


Question: Im graduating with a Computer Science degree but I dont feel like I know how to program


Question: What is the single most effective thing you did to improve your programming skills?


Question: My boss decided to add a person to blame field to every bug report. How can I convince him that its a bad idea?


Question: How to respond when you are asked for an estimate?


Question: Why is 80 characters the standard limit for code width?


Question: So Singletons are bad, then what?


Question: Is the use of utf8=✓ preferable to utf8=true?


Question: What is the Mars Curiosity Rovers software built in?


Question: Pros and Cons of Facebooks React vs. Web Components (Polymer)


Question: Why cant the IT industry deliver large, faultless projects quickly as in other industries?


Question: Is it OK to have multiple asserts in a single unit test?


Question: Ive inherited 200K lines of spaghetti code -- what now?


Question: Overcoming slow problem solving due to increased knowledge of what might go wrong


Question: My customer wants me to record a video of how I develop his software product


Question: How accurate is Business logic should be in a service, not in a model?


Question: Should UTF-16 be considered harmful?


Question: Im a manager. How can I improve work relationships and communication with programmers?


Question: How do I create my own programming language and a compiler for it


Question: Should I intentionally break the build when a bug is found in production?


Question: Why do game developers prefer Windows?


Question: What does stage mean in git?


Question: Why is Global State so Evil?


Question: Why isnt Java used for modern web application development?


Question: I dont program in my spare time. Does that make me a bad developer?


Question: Im doing 90% maintenance and 10% development, is this normal?


Question: Should I keep my GitHub forked repositories around forever?


Question: How would you know if youve written readable and easily maintainable code?


Question: How should I behave as a developer in a project thats headed for failure?


Question: What is negative code?


Question: Should you write your back-end as an API?


Question: Is 4-5 years the “Midlife Crisis” for a programming career?


Question: Why do business analysts and project managers get higher salaries than programmers?


Question: Why are there no PUT and DELETE methods on HTML forms?


Question: When should you call yourself a senior developer?


Question: What software programming languages were used by the Soviet Unions space program?


Question: When is a BIG Rewrite the answer?


Question: Why are shortcuts like x += y considered good practice?


Question: Should curly braces appear on their own line?


Question: Im a Subversion geek, why should I consider or not consider Mercurial or Git or any other DVCS?


Question: Should I return from a function early or use an if statement?


Question: How Can I Know Whether I Am a Good Programmer?


Question: Why does everyone use Git in a centralized manner?


Question: What does SVN do better than Git?


Question: Is there any reason to use the var keyword in ES6?


Question: Grokking Java culture - why are things so heavy? What does it optimize for?


Question: Do I need to use an interface when only one class will ever implement it?


Question: Should package names be singular or plural?


Question: Are #regions an antipattern or code smell?


Question: Why are people making tables with divs?


Question: Why dont all companies buy developers the best hardware?


Question: Does using == in JavaScript ever make sense?


Question: How do you know youre writing good code?


Question: Leaving intentional bugs in code for testers to find


Question: Why have private fields, isnt protected enough?


Question: Aggregation vs Composition


Question: Should we avoid object creation in Java?


Question: Choosing between Single or multiple projects in a git repository?


Question: How do you tell if advice from a senior developer is bad?


Question: Why squash git commits for pull requests?


Question: How to write a very basic compiler


Question: What does the Spring framework do? Should I use it? Why or why not?


Question: How do you unit test private methods?


Question: How are globals any different from a database?


Question: How can I deal with the cargo-cult programming attitude?


Question: Perks for new programmers


Question: Is premature optimization really the root of all evil?


Question: Can I use GPL software in a commercial application


Question: If immutable objects are good, why do people keep creating mutable objects?


Question: What is the difference between writing test cases for BDD and TDD?


Question: Whats wrong with comments that explain complex code?


Question: What should every programmer know?


Question: Why do dynamic languages make it more difficult to maintain large codebases?


Question: Project is nearly done, but procedural spaghetti code. Do I rewrite or just keep trying to ship it?


Question: Should images be stored in a git repository?


Question: Why was Tanenbaum wrong in the Tanenbaum-Torvalds debates?


Question: Torvalds quote about good programmer


Question: Will high reputation in Stack Overflow help to get a good job?


Question: How can a code editor effectively hint at code nesting level - without using indentation?


Question: Why do many exception messages not contain useful details?


Question: Why do ads for s/w engineers always say they offer a fast-paced environment?


Question: Why do we need private variables?


Question: Is it wrong to use a boolean parameter to determine behavior?


Question: Python file naming convention?


Question: Why do people hesitate to use Python 3?


Question: Why shouldnt I use the repository pattern with Entity Framework?


Question: New developer cant keep up with branch merges


Question: Are `break` and `continue` bad programming practices?


Question: Why use a database instead of just saving your data to disk?


Question: Is it a bad practice to store large files (10 MB) in a database?


Question: Strategy for keeping secret info such as API keys out of source control?


Question: Is it normal to spend as much, if not more, time writing tests than actual code?


Question: Is there a name for the (anti- ) pattern of passing parameters that will only be used several levels deep in the call chain?


Question: Why is naming a tables Primary Key column Id considered bad practice?


Question: How much should I be using let vs const in ES6?


Question: New Team Lead - How to deal with a resentful former peer


Question: How do I prevent Scrum from turning great developers into average developers?


Question: Why do we need so many classes in design patterns?


Question: AGPL - what you can do and what you cant


Question: Is it good practice to always have an autoincrement integer primary key?


Question: Why arent more desktop apps written with Qt?


Question: Whats the canonical retort to its open source, submit a patch?


Question: What is MVC, really?


Question: How can one manage thousands of IF...THEN...ELSE rules?


Question: Never do in code what you can get the SQL server to do well for you - Is this a recipe for a bad design?


Question: What exactly makes the Haskell type system so revered (vs say, Java)?


Question: When do you use float and when do you use double


Question: Do we really need OO languages to manage software complexity?


Question: My boss asks me to stop writing small functions and do everything in the same loop


Question: Why doesnt HTTP have POST redirect?


Question: Is it bad practice to use <?= tag in PHP?


Question: When using the Single Responsibility Principle, what constitutes a responsibility?


Question: What are good habits for designing command line arguments?


Question: Whats the difference between an API and an SDK?


Question: Why is Mercurial considered to be easier than Git?


Question: Best existing license for closed-source code


Question: Why are native ES6 promises slower and more memory-intensive than bluebird?


Question: What is meant by Now you have two problems?


Question: My Dad is impatient with the pace of my learning to program. What do I do?


Question: Why do programmers write closed source applications and then make them free?


Question: Whats the difference between Entry Level/Jr/Sr developers?


Question: Should you keep a copy of all the code you write?


Question: What is wrong with magic strings?


Question: How do I handle disagreement in a code review regarding an unlikely edge case?


Question: When to favor ASP.NET WebForms over MVC


Question: Is every language written in C?


Question: How to find positive things in a code review?


Question: How to convince my boss that quality is a good thing to have in code?


Question: import module vs. from module import function


Question: Why are the sizes of programs so large?


Question: Is micro-optimisation important when coding?


Question: When are Getters and Setters Justified


Question: A large part of my code has a major design flaw. Finish it off or fix it now?


Question: Difference between REST and CRUD


Question: Meaning of MIT license


Question: How can I deal with a team member who dislikes making comments in code?


Question: Has Not everyone can be a programmer been studied?


Question: How to apologize when you have broken the nightly build


Question: Is there a benefit in compiling your code as you go along?


Question: How do I review my own code?


Question: Is Entity Framework Suitable For High-Traffic Websites?


Question: Is C++11 Uniform Initialization a replacement for the old style syntax?


Question: How do you balance between do it right and do it ASAP in your daily work?


Question: When do you use a struct instead of a class?


Question: Why is Clean Code suggesting avoiding protected variables?


Question: What is the advantage of little endian format?


Question: What is the benefit of gits two-stage commit process (staging)?


Question: Why does automated testing keep failing in my company?


Question: Whats wrong with circular references?


Question: Why should I use a factory class instead of direct object construction?


Question: How do searches fit into a RESTful interface?


Question: Developer insists if statements shouldnt have negated conditions, and should always have an else block


Question: Are null references really a bad thing?


Question: How can programming ability be used to help people in poverty?


Question: Is it OK to split long functions and methods into smaller ones even though they wont be called by anything else?


Question: How can I convince management to deal with technical debt?


Question: What is an Anti-Corruption layer, and how is it used?

Эдуард Буремный


Question: Exceptions: Why throw early? Why catch late?


Question: Git branching and tagging best practices


Question: What is the advantage of currying?


Question: Programming cleanly when writing scientific code


Question: Mono is frequently used to say Yes, .NET is cross-platform. How valid is that claim?


Question: Elegant ways to handle if(if else) else


Question: How to break up a programming project into tasks for other developers?


Question: Why are part-time jobs in programming an anomaly?


Question: Why is JavaScript not compiled to bytecode before sending over the network?


Question: How do operating systems… run… without having an OS to run in?


Question: What happened to the Surgical Team pattern from The Mythical Man-Month?


Question: Is there any reason to use C++ instead of C, Perl, Python, etc.?


Question: Why are interfaces useful?


Question: How to be a zero-bug programmer?


Question: I changed one method signature and now have over 25,000 errors. What now?


Question: How do quick & dirty programmers know they got it right?


Question: Where can I find programming puzzles and challenges?


Question: Are exceptions as control flow considered a serious antipattern? If so, Why?


Question: Is Ken Thompsons compiler hack still a threat?


Question: What is the point of using DTO (Data Transfer Objects)?


Question: Scheme vs Common Lisp: Which characteristics made a difference in your project?


Question: Are there any famous one-man-army programmers?


Question: Is there a specific reason for the poor readability of regular expression syntax design?


Question: When to use C over C++, and C++ over C?


Question: Stored Procedures a bad practice at one of worlds largest IT software consulting firms?


Question: Why does it matter that HTML and CSS are not programming languages?


Question: Is constantly looking for code examples a sign of a bad developer?


Question: What is a closure?


Question: Is it better to return NULL or empty values from functions/methods where the return value is not present?


Question: Windows Azure vs Amazon EC2 vs Google App Engine


Question: Developing web applications for long lifespan (20+ years)


Question: Which SPDX license is equivalent to All Rights Reserved?


Question: SOLID Principles and code structure


Question: How to keep a big and complex software product maintainable over the years?


Question: Why there is no markdown for underline?


Question: How should I test randomness?


Question: If my team has low skill, should I lower the skill of my code?


Question: When would someone use MongoDB (or similar) over a Relational DBMS?


Question: How to Code Faster (Without Sacrificing Quality)


Question: How do you make people accept code review?


Question: How is localStorage different from indexedDB?


Question: My boss wants a narrated line-by-line English explanation of our code


Question: Is it just me or is this a baffling tech interview question?


Question: Is my work on a developer test being taken advantage of?


Question: How do you organize your projects?


Question: Understanding the differences: traditional interpreter, JIT compiler, JIT interpreter and AOT compiler

Эдуард Буремный


Question: Was the C programming language considered a low level language when it came out?


Question: Stuck due to knowing too much


Question: Would you put your Stack Overflow profile link on your CV / Resume?


Question: Module vs. Package?


Question: How can I find a good open source project to join?


Question: Why hasnt a faster, better language than C come out?


Question: Is there such a thing as having too many unit tests?


Question: Are there guidelines on how many parameters a function should accept?


Question: What do you do when code review is just too hard?


Question: Is it unusual for a small company (15 developers) not to use managed source/version control?


Question: When do you write the real code in TDD?


Question: Did the Gang of Four thoroughly explore Pattern Space?


Question: Benefits of Structured Logging vs basic logging


Question: Should the variable be named Id or ID?


Question: Where does this concept of favor composition over inheritance come from?


Question: Should I refactor the code that is marked as dont change?


Question: Relationship between C#, .NET, ASP, ASP.NET etc


Question: Why does Uncle Bob suggest that coding standards shouldnt be written down if you can avoid it?


Question: Maintain hundreds of customized branches over master branch


Question: Coding standard for clarity: comment every line of code?


Question: When is it appropriate to not unit test?


Question: Are bad programming practices typical within the software industry?


Question: Should we define types for everything?


Question: What are the drawbacks of Python?


Question: Why do we use story points instead of man days when estimating user stories?


Question: What are the key points of Working Effectively with Legacy Code?


Question: Criticism and disadvantages of dependency injection


Question: Are 9 to 5 programmers looked down upon?


Question: How do you dive into large code bases?


Question: why are noSQL databases more scalable than SQL?


Question: How many hours can you be really productive per day? How?


Question: Why did memory-managed languages like Java, Javascript, and C# retain the `new` keyword?


Question: Should I stop using the term C/C++?


Question: Simple method for reliably detecting code in text?


Question: How to detect the encoding of a file?


Question: What are the real life implications for an Apache 2 license?


Question: When is it not appropriate to use the dependency injection pattern?


Question: Is this a violation of the Liskov Substitution Principle?


Question: How to become a faster programmer?


Question: Are private methods with a single reference bad style?


Question: What really is the business logic?


Question: When is it a good idea to force garbage collection?


Question: How do I get people to stop bikeshedding (focusing on trivialities)?


Question: How do you maintain focus when a particular aspect of programming takes 10+ seconds to complete?


Question: How do you achieve a numeric versioning scheme with Git?


Question: Is there an excuse for short variable names?


Question: Where do magic hashing constants like 0x9e3779b9 and 0x9e3779b1 come from?


Question: On developing deep programming knowledge


Question: Is there any real reason multiple inheritance is hated?


Question: Agile for the Solo Developer


Question: TDD vs. Productivity


Question: How much business logic should the database implement?


Question: Why doesnt Java 8 include immutable collections?


Question: Does auto make C++ code harder to understand?


Question: Are design patterns frowned upon?


Question: Time difference between developing with unit tests vs no tests


Question: What is the difference between requirements and specifications?


Question: Why do people use C if it is so dangerous?


Question: Is it normal for people to not work?


Question: How do I know how reusable my methods should be?


Question: What are the advantages and disadvantages of cryptographically signing commits and tags in Git?


Question: How can I tactfully suggest improvements to others badly designed code during review?


Question: Does craftsmanship pay off?


Question: Are (database) integration tests bad?


Question: Two HTML elements with same id attribute: How bad is it really?


Question: How to recognize a good programmer?


Question: What is the ideal length of a method for you?


Question: Why do most of us use i as a loop counter variable?


Question: What does C++ do better than D?


Question: Recursion or while loops


Question: Do you have to include a license notice with every source file?


Question: Is source code generation an anti-pattern?


Question: Forking a repo on GitHub but allowing new issues on the fork


Question: What is an integration test exactly?


Question: What should you test with unit tests?


Question: Am I too clever to be readable by Jr. devs? Too much functional programming in my JS?


Question: Why are statements in many programming languages terminated by semicolons?


Question: Is it always a best practice to write a function for anything that needs to repeat twice?


Question: How does an event listener work?


Question: Creating database connections - Do it once or for each query?


Question: Difference between a socket and a port


Question: How does learning assembly aid in programming?


Question: Is it possible to rewrite every line of an open source project in a slightly different way, and use it in a closed source project?


Question: Are private, unguessable URLs equivalent to password-based authentication?


Question: XKCD #936: Short complex password, or long dictionary passphrase?


Question: How does SSL/TLS work?


Question: How to securely hash passwords?


Question: What technical reasons are there to have low maximum password lengths?


Question: Do any security experts recommend bcrypt for password storage?


Question: How does changing your password every 90 days increase security?


Question: How to store salt?


Question: Whats the difference between SSL, TLS, and HTTPS?


Question: How can I explain SQL injection without technical jargon?


Question: Why can I log in to my Facebook account with a misspelled email/password?


Question: Is my developers home-brew password security right or wrong, and why?


Question: Police forcing me to install Jingwang spyware app, how to minimize impact?


Question: RSA vs. DSA for SSH authentication keys


Question: Are passwords stored in memory safe?


Question: Is it bad practice to use your real name online?

Эдуард Буремный


Question: How is it possible that people observing an HTTPS connection being established wouldnt know how to decrypt it?


Question: Is BASIC-Auth secure if done over HTTPS?


Question: I found that the company I work for is putting a backdoor into mobile phones


Question: Why is Bearer required before the token in Authorization header in a HTTP request?


Question: What is certificate pinning?


Question: Should I let my childs school have access to my kids personal laptop?


Question: SQL injection is 17 years old. Why is it still around?


Question: Is it normal for auditors to require all company passwords?


Question: What makes Docker more secure than VMs or bare metal?


Question: How can someone go off-web, and anonymise themselves after a life online?


Question: CRIME - How to beat the BEAST successor?


Question: How to find live hosts on my network?


Question: Whats the rationale behind Ctrl-Alt-Del for login


Question: Why is Gbt3fC79ZmMEFUFJ a weak password?


Question: How does Google know where I am?


Question: Diffie-Hellman Key Exchange in plain English


Question: How did tech-supportcenter phishers trick Google?


Question: Why shouldnt we roll our own?


Question: How to explain Heartbleed without technical terms?


Question: Consequences of the WPA2 KRACK attack


Question: How do certification authorities store their private root keys?


Question: Password Hashing: add salt + pepper or is salt enough?


Question: Why are salted hashes more secure for password storage?


Question: Is the save button delay in a Firefox download dialog a security feature? What does it protect?


Question: How does Google Authenticator work?


Question: Can ads on a page read my password?


Question: How is the WannaCry Malware spreading and how should users defend themselves from it?


Question: Why are hash functions one way? If I know the algorithm, why cant I calculate the input from it?


Question: SSL3 POODLE Vulnerability


Question: Passwords being sent in clear text due to users mistake in typing it in the username field


Question: My college is forcing me to install their SSL certificate. How to protect my privacy?


Question: What is the difference between https://google.com and https://encrypted.google.com?


Question: Is single quote filtering nonsense?


Question: All 0s (zeros) in a bank cards CVC code


Question: Is Telegram secure?


Question: Is the oft-cited XKCD scheme [...] no longer good advice?


Question: Why did I have to wave my hand in front of my ID card?


Question: Why is Math.random() not designed to be cryptographically secure?


Question: Why would you not permit Q or Z in passwords?


Question: Tracing the location of a mobile IP from an email


Question: Is there any reason to disable paste password on login?


Question: How exactly does the OpenSSL TLS heartbeat (Heartbleed) exploit work?


Question: What is the difference between authorized_keys and known_hosts file for SSH?


Question: What is the difference between SSL vs SSH? Which is more secure?


Question: Is there any reason to not show users incorrectly entered passwords after a successful login?


Question: Where do you store your personal private GPG key?


Question: Provide subjectAltName to openssl directly on the command line


Question: Recommended # of iterations when using PBKDF2-SHA256?


Question: What is a specific example of how the Shellshock Bash bug could be exploited?


Question: How should I distribute my public key?


Question: What should you do if you catch encryption ransomware mid-operation?


Question: How secure is blacking out sensitive information using MS Paint?


Question: How can I explain to non-techie friends that cryptography is good?


Question: Is a rand from /dev/urandom secure for a login key?


Question: Why not use larger cipher keys?


Question: Should I use CSRF protection on Rest API endpoints?


Question: How safe are password managers like LastPass?


Question: Dont understand how my mums Gmail account was hacked


Question: What are ssh-keygen best practices?


Question: How does Windows 10 allow Microsoft to spy on you?


Question: Does https prevent man in the middle attacks by proxy server?


Question: How do mobile carriers know video resolution over HTTPS connections?


Question: Best Practice: ”separate ssh-key per host and user“ vs. ”one ssh-key for all hosts“


Question: Amount of simple operations that is safely out of reach for all humanity?


Question: Search for military installed backdoors on laptop


Question: Isnt Ubuntus system prompt for my password spoofable?


Question: Does Facebook store plain-text passwords?


Question: How can I protect myself from this kind of clipboard abuse?


Question: How do I deal with a compromised server?


Question: Is the NHS wrong about passwords?


Question: Why are chips safer than magnetic stripes?


Question: What is the purpose of gibberish comments posted to my blog?


Question: How is an ATM secure?


Question: Help! My home PC has been infected by a virus! What do I do now?


Question: Why cant the FBI read the key embedded in the iPhones secure chip/ROM directly from hardware (silicon)?


Question: SSH key-type, rsa, dsa, ecdsa, are there easy answers for which to choose when?


Question: Why is it wrong to *implement* myself a known, published, widely believed to be secure crypto algorithm?


Question: Is there anything preventing the NSA from becoming a root CA?


Question: What is a good analogy to explain to a layman why passwords should be hashed?


Question: Can webcams be turned on without the indicator light?


Question: How secure are virtual machines really? False sense of security?


Question: How and when do I use HMAC?


Question: Convince people not to share their password with trusted others


Question: How to determine what type of encoding/encryption has been used?


Question: Is Adblock (Plus) a security risk?


Question: GitLab account hacked and repo wiped


Question: Should I be concerned if the FBI has logged onto my Ubuntu VPS?


Question: Meltdown and Spectre Attacks


Question: Apples open letter - they cant or wont backdoor iOS?


Question: What does it mean to burn a zero-day?


Question: Password management for kids - whats a good way to start?


Question: How do you explain the necessity of nuke it from orbit to management and users?


Question: Difference Between OAUTH, OpenID and OPENID Connect in very simple term?


Question: Why is Mother’s Maiden Name still used as a security question?


Question: How can USB sticks be dangerous?


Question: What are the implications of NSA surveillance on the average internet user?


Question: What is DROWN and how does it work?


Question: I found unknown PHP code on my server. How do I de-obfuscate the code?


Question: What are rainbow tables and how are they used?

Эдуард Буремный


Question: What is the safest way to deal with loads of incoming PDF files, some of which could potentially be malicious?


Question: Is Have I Been Pwneds Pwned Passwords List really that useful?


Question: What exactly does it mean when Chrome reports no certificate transparency information was supplied by the server?


Question: 4-dial combination padlock: Is it more secure to zero it out or to blindly spin the dials after locking?


Question: Is the BBC’s advice on choosing a password sensible?


Question: Where to store a server side encryption key?


Question: If my password was able to be printed on a form sent home from my childs school, does it imply insecure password storage policies?


Question: Why is the OS obfuscation defense against Its a Unix system! not widely implemented?


Question: Difference between .pfx and .cert certificates


Question: Why most people use 256 bit encryption instead of 128 bit?


Question: Is visiting HTTPS websites on a public hotspot secure?


Question: How does Amazon bill me without the CVC / CVV / CVV2?


Question: Hardening Linux desktop machine against people from my household


Question: What to do if stuck with website that has poor security?


Question: Why is the same origin policy so important?


Question: Does pressing a car remote many times offer denial of service attack for rolling codes?


Question: What alternatives are there when SSH is being actively filtered?


Question: Do I need to encrypt connections inside a corporate network?


Question: Which security measures make sense for a static web site?


Question: How can PayPal spoof emails so easily to say it comes from someone else?


Question: How do organizations check *what* has been hacked?


Question: Has it been mathematically proven that antivirus cant detect all viruses?


Question: Can someone take down Wi-Fi signal?


Question: ECDSA vs ECDH vs Ed25519 vs Curve25519


Question: Is password entry being recorded on camera a realistic concern?


Question: How should I set up emergency access to business-critical secrets in case I am hit by a bus?


Question: How does Shutterstock keep getting my latest debit card number?


Question: Is Plaid, a service which collects user’s banking login information, safe to use?


Question: Hosting company advised us to avoid PHP for security reasons. Are they right?


Question: To sufficiently protect against KRACK is patching the client, the AP, or both, required?


Question: What hacking competitions/challenges exist?


Question: Secure way of masking out sensitive information in screenshots?


Question: https security - should password be hashed server-side or client-side?


Question: Is there any technical security reason not to buy the cheapest SSL certificate you can find?


Question: Did I just get DNS Hijacked?


Question: Is it secure to store passwords with 2 way encryption?


Question: Is exploit-free software possible?


Question: Is public Wi-Fi a threat nowadays?


Question: Why cant I just let customers connect directly to my database?


Question: Internet courtship: Why would a hacker buy me poker chips?


Question: Received a set of SMS/MMS containing 2 photos, a voice message, and a text I need help with Google Maps link from a known contact. Is it spam?


Question: I got an email threatening to DDOS me if I dont pay a ransom. What should I do?


Question: How do I report a security vulnerability about a trusted certificate authority?


Question: Where can I find good dictionaries for dictionary attacks?


Question: Can a computer virus be stored somewhere else than on the hard drive?


Question: Are man in the middle attacks extremely rare?


Question: How secure is Chrome storing a password?


Question: How hard is it to intercept SMS (two-factor authentication)?


Question: How can I export my private key from a Java Keytool keystore?


Question: Why not allow spaces in a password?


Question: Why are programs written in C and C++ so frequently vulnerable to overflow attacks?


Question: How did Google know I looked something up?


Question: What should I do when my boss asks me to fabricate audit log data?

Эдуард Буремный


Question: Is Google spying on all of us?


Question: What is tabnabbing?


Question: How does the authentication in the new UK £1 coin work?


Question: Is a Windows installer that doesnt require admin rights dangerous?


Question: Why is fhepfcelehfcepfffacacacacacacabn a top DNS query from my devices?


Question: Is HostGator storing my password in plaintext?


Question: Is momentary physical access dangerous?


Question: What to do if caught in a physical pentest?


Question: This JavaScript code is injected on my hotel Wi-Fi: should I be worried?


Question: Should I contact the manufacturer if their product allows access to other users location information?


Question: Why would someone trust DuckDuckGo or other providers with a similar privacy policy?


Question: How secure are the FIDO U2F tokens


Question: How should I securely type a password in front of a lot of people?


Question: What stops Google from saving all the information on my computer through Google Chrome?


Question: Why is my internal IP address (private) visible from the Internet?


Question: Should I be worried of tracking domains on a banking website?


Question: Is there any way to safely examine the contents of a USB memory stick?


Question: Is it common to allow local desktop and/or active directory admin access and rights for developers in organizations?


Question: How do I use openssl s_client to test for (absence of) SSLv3 support?


Question: Can my employer see what I do on the internet when I am connected to the company network?


Question: What are the security reasons for disallowing the plus sign in email addresses?


Question: How is the Heartbleed exploit even possible?


Question: Why is storing passwords in version control a bad idea?


Question: How does ransomware get on peoples computers?


Question: Is there any particular reason to use Diffie-Hellman over RSA for key exchange?


Question: How do ASLR and DEP work?


Question: Why use OpenID Connect instead of plain OAuth2?


Question: Does an ISO27001 audit require users to reveal their passwords?


Question: My ISP uses deep packet inspection; what can they observe?


Question: Are there technical differences which make Linux less vulnerable to virus than Windows?


Question: Session Authentication vs Token Authentication


Question: What is the website checking about my browser to protect the website from a DDoS?


Question: Is there a legitimate reason I should be required to use my companys computer? (BYOD prohibited)


Question: Why do phishing e-mails use faked e-mail addresses instead of the real one?


Question: How critical is it to keep your password length secret?


Question: Lets Encrypt for intranet websites?


Question: Is it completely safe to publish an ssh public key?


Question: Is it safe to include an API key in a requests URL?


Question: Is it acceptable that a skilled professional pentester deletes or modifies sensitive data in production unintentionally during a pentest?


Question: How much can I trust Tor?


Question: Whats to stop someone from 3D print cloning a key?


Question: Attacking an office printer?


Question: Hacker used picture upload to get PHP code into my site


Question: How can I punish a hacker?


Question: Password rules: Should I disallow leetspeak dictionary passwords like XKCDs Tr0ub4dor&3


Question: Why wasnt the KRACK exploit discovered sooner?


Question: Is it a bad idea for a firewall to block ICMP?


Question: Is using Git for deploying a bad practice?


Question: Are password-protected ZIP files secure?


Question: How difficult to crack keepass master password?


Question: When choosing a numeric PIN, does it help or hurt to make each digit unique?


Question: Is it good or bad practice to allow a user to change their username?


Question: How would a resourceful government block Tor?


Question: Why do phishing emails have spelling and grammar mistakes?


Question: How to find out what programming language a website is built in?


Question: Should SSL be terminated at a load balancer?


Question: What certificates are needed for multi-level subdomains?


Question: Recommended # of rounds for bcrypt


Question: I cant access websites that use HTTPS, instead getting the message your connection is not private!


Question: What would one need to do in order to hijack a satellite?


Question: Alternatives to anti-virus for keeping oneself safe


Question: Why is Steam so insistent on security?


Question: How could I make the results of a yes/no vote inaccessible unless its unanimous in the affirmative, without a trusted third party?


Question: What should a website operator do about the Heartbleed OpenSSL exploit?


Question: Why is it dangerous to open a suspicious email?


Question: Someone is using my (or has the same) email


Question: Does an established HTTPS connection mean a line is really secure?


Question: How can RFID/NFC tags not be cloned when they are passive technology?


Question: How can mom monitor my internet history from a distance?


Question: Roles to play when tailgaiting into a residential building


Question: Can cat-ing a file be a potential security risk?


Question: Is it dangerous to post my MAC address publicly?


Question: Does bcrypt have a maximum password length?


Question: Why should I offer HTTP in addition to HTTPS?


Question: What should I do about Gmail ad asking me for password?


Question: Why can we still crack snapchat photos in 12 lines of Ruby?


Question: Secure way to log in to a website on someone elses computer


Question: Is using dot and at in email addresses in public text still useful?


Question: Which elliptic curve should I use?


Question: Why should one not use the same asymmetric key for encryption as they do for signing?


Question: Whats the purpose of DH Parameters?


Question: Is it safe to send clear usernames/passwords on a https connection to authenticate users?


Question: Why do sites implement locking after three failed password attempts?


Question: Should I change the default SSH port on linux servers?


Question: Username and/or Password Invalid - Why do websites show this kind of message instead of informing the user which one was wrong?


Question: How does DuckDuckGo know my native language even though I am using a VPN in a country with a different language?


Question: My school wants to keep the details of our door authentication system a secret. Is that a good idea?


Question: Now that it is 2015, what SSL/TLS cipher suites should be used in a high security HTTPS environment?


Question: How do I run proper HTTPS on an Internal Network?


Question: What kinds of encryption are _not_ breakable via Quantum Computers?


Question: Should websites be allowed to disable autocomplete on forms or fields?


Question: Is `sudo` almost useless?


Question: How can waiting 24 hours to change the password again be secure?


Question: Why do I hear about so many Java insecurities? Are other languages more secure?


Question: Is password knocking a good idea?


Question: Defence methods against tailgating


Question: How can I argue against: System is unhackable so why patch vulnerabilities?


Question: Technology that can survive a Rubber-Hose attack


Question: Can simply decompressing a JPEG image trigger an exploit?


Question: Suspicious GitHub fork


Question: At what point does something count as security through obscurity?


Question: Is social-engineering an actual threat

Эдуард Буремный


Question: Is saving passwords in Chrome as safe as using LastPass if you leave it signed in?


Question: What is the difference between Federated Login and Single Sign On?


Question: Why cant I MitM a Diffie-Hellman key exchange?


Question: School performs periodic password audits. Is my password compromised?


Question: Is a redirect showing the password in plain text a security vulnerability?


Question: Confirmed evidence of cyber-warfare using GPS history data


Question: Prevention measures against laptop seizure at US borders


Question: Being told my network isnt PCI compliant. I dont even have a server! Do I have to comply?


Question: The slash after an IP Address - CIDR Notation


Question: Why do we need a 3-way handshake? Why not just 2-way?


Question: How do you calculate the prefix, network, subnet, and host numbers?


Question: IPv6 address space layout best practices


Question: When to choose fiber instead of twisted pair (copper)


Question: Why and how are Ethernet Vlans tagged?


Question: Whats the difference between IKE and ISAKMP?


Question: Is IPv10 a joke or a serious RFC draft?


Question: Why are IPv4 addresses running out?


Question: PING port number?


Question: Is 30 Mbit/s fibre faster than 30 Mbit/s copper?


Question: Why only port 80 for web services?


Question: Multi-Mode and Single-Mode Fiber Differences


Question: What is the meaning / origin of the terms north-south and east-west traffic?


Question: Why do I see a RST, ACK packet instead of a RST packet?


Question: Does having a longer Ethernet cable slow your connection?


Question: How can I see which switchports are not in use?


Question: Why do we need IPv6?


Question: Network Neutrality, how does it actually work, technically speaking?


Question: Is Ethernet port blinking really useful?


Question: Reason for both a MAC and an IP address


Question: Why is fe80::/10 reserved for link local addresses when fe80::/64 is actually used?


Question: Does UDP do anything at all?


Question: Difference between control plane, data plane and management plane?


Question: How can I diagnose a bridging (ethernet) loop?


Question: Why is such a large IPv4 range assigned to localhost?


Question: Bits per second vs. Packets per second


Question: How does gratuitous ARP work?


Question: What is the difference between MSS and MTU?


Question: Why 192.168.*.* for local addresses?


Question: Why was the MTU size for ethernet frames calculated as 1500 bytes?


Question: How to check for a valid public IP address?


Question: How do you prevent rogue wireless access points on a network?


Question: TCPDump - Filter by MAC Address


Question: Difference between Subnet and VLAN?


Question: Does a traceroute/tracert show every hop, or does it skip/hide some details of the path?


Question: How would a router with /32 WAN subnet mask communicate with the rest of the Internet?


Question: OSI Model and Networking Protocols Relationship


Question: Why does ipv6 specify 128 bit address, when there are only 48 bits in MAC addresses?


Question: What is the actual size of an Ethernet MTU


Question: Why does the IPv6 header not include a checksum?


Question: Why are Ethernet Standards written in the form of 10/100/1000? Why not just 1000?


Question: Why do network taps have four ports?


Question: Using SNMP to retrieve the ARP and mac-address tables from a switch


Question: How can I stop an intruder plugging into an Ethernet wall socket getting access to the network?


Question: Why are IPv4 addresses 32-bit?


Question: Better Enterprise Multihoming


Question: What is oversubscription in Networking?


Question: What are the downsides of OpenVPN?


Question: What is the proper term for ipaddress/hostname:port


Question: Why do we still use Ethernet?


Question: Are CoS and QoS ever interchangeable?


Question: What is the meaning of the CRC counter on a cisco device?


Question: What does the 1000M on a network switch mean?


Question: Why isnt UDP with reliability (implemented at Application layer) a substitute of TCP?


Question: Why does DHCP use UDP and not TCP?


Question: Is multicast on the public internet possible? And if yes: How?


Question: How can I capture traffic on Cisco IOS switches?


Question: Difference between sniffer tools


Question: Why use SSH and VPN in combination?


Question: Why can I traceroute to this IP address, but not ping?


Question: Does it make sense to deploy OSPF across Metro Ethernet?


Question: How does a switch learn a switch table?


Question: Route servers and looking glasses - what are they?


Question: Will IPv6 make private IP addresses become obsolete?


Question: How to find the port a device is connected to, based on IP, on a Cisco Catalyst switch


Question: Why is 4096 the max value for VLANs


Question: Accidentally Removed Allowed VLANs from Cisco Switch Dot1Q Trunk


Question: Why cant devices on different VLANs, but on the same subnet, communicate?


Question: Should IPv4 ICMP from untrusted interfaces be blocked?


Question: Why am I getting an “invalid active developer path” when attempting to use Git after upgrading macOS?


Question: List of all packages installed using Homebrew


Question: How can I permanently add my SSH private key to Keychain so it is automatically available to ssh?


Question: Please share your hidden macOS features or tips and tricks


Question: How to find cause of high kernel_task cpu usage?


Question: Remap Home and End to beginning and end of line


Question: What is the difference between `brew` and `brew cask`?


Question: git auto-complete for *branches* at the command line?


Question: Shortcut for toggling between different windows of same app?


Question: How do I disable Chromes two-finger back/forward navigation?


Question: Got any tips or tricks for Terminal in Mac OS X?


Question: How can I create a symbolic link in Terminal?


Question: Why does my dock keep moving back to my other monitor?


Question: How to separate mouse and trackpad settings?


Question: How can I configure Mac Terminal to have color ls output?


Question: How do I recompile Bash to avoid Shellshock (the remote exploit CVE-2014-6271 and CVE-2014-7169)?


Question: What Window Management Options exist for OS X?


Question: How can I trigger a Notification Center notification from an AppleScript or shell script?


Question: What is the difference between .bash_profile and .bashrc?


Question: How do I stop the Adobe Creative Cloud app from auto-launching on login?


Question: How to prevent Mac from changing the order of Desktops/Spaces


Question: Using Alt/Cmd + Right/Left Arrow in iTerm


Question: How can I disable animation when switching desktops in Lion?


Question: mds and mds_stores constantly consuming cpu


Question: How do I downgrade node or install a specific previous version using homebrew?


Question: How to change computer name so terminal displays it in Mac OS X Mountain Lion?


Question: iTerm - going one word backwards and forwards


Question: Hotkey to show hidden files and folders in File Open dialog?


Question: How can I list my open network ports with netstat?


Question: File Open dialog is missing sidebar items


Question: How to combine two images into one on a Mac?


Question: How to Retrieve the Wi-Fi Password of a Connected Network on a Mac


Question: Can I get the CPU temperature and fan speed from the command line in OS X?


Question: How do I find my IP Address from the command line?


Question: How do I launch Finder from terminal or command line


Question: What is the rootless feature in El Capitan, really?


Question: Applications Dont Show Up in Spotlight


Question: How can I manually delete old backups to free space for Time Machine?


Question: Why doesnt .bashrc run automatically?


Question: Make the green full screen window icon on Yosemite maximize windows


Question: What do I type to produce the command symbol (⌘) in Mac OS X?


Question: How to replace Mac OS X utilities with GNU core utilities?


Question: What are the practical differences between Bash and Zsh?


Question: Is there a Mac OS X Terminal version of the free command in Linux systems?


Question: How do I combine two or more images to get a single pdf file?


Question: Can I open files in TextEdit from the Terminal in Mac OS X?


Question: macOS Sierra doesn’t seem to remember SSH keys between reboots


Question: I included emoji in my password and now I cant log in to my Account on Yosemite


Question: How can I save tabs in iTerm 2 so they restore the next time the app is run?


Question: How to increase keyboard key repeat rate on OS X?


Question: How to use terminal to copy a file to the clipboard?


Question: How can I make Safari show the URL when I hover over a link?


Question: How do I remove the Google Chrome notifications bell icon from the Mac OS X menu bar?


Question: Why are dot underscore ._ files created, and how can I avoid them?


Question: Keyboard shortcut for restoring applications from the Mac OS X Dock?


Question: How to create a text file in a folder


Question: How do I disable System Integrity Protection (SIP) AKA rootless on macOs [OS X]


Question: Where can I find the installed package path via brew


Question: Best app to switch between all open windows


Question: How to fix brew after OSX upgrade to Yosemite?


Question: Homebrew: Your CLT does not support macOS 11.0


Question: What are pros and cons for MacPorts, Fink and Homebrew?


Question: Is there a quick way to lock my Mac?


Question: Which OS X Applications do you find indispensable?


Question: What tiny thing in Lion makes you smile or has caught you off guard?


Question: Need a cli to check the sha256 hash of a file


Question: What is the difference between iTerm2 and Terminal?


Question: How to use the Homebrew installed git on Mac?


Question: Open Finder window from current Terminal location?


Question: WindowServer high CPU on Yosemite


Question: iTerm as a slide-out terminal from the top of the screen


Question: Task Switcher moves to non-primary display on Mavericks-Catalina


Question: Override iTunes media keys (play, pause, etc) for Spotify?


Question: How to move files to trash from command line?


Question: Why isnt iTunes shuffle random?


Question: Is there a keyboard shortcut to move a window from one monitor to another?


Question: Can I change the brightness on a secondary display?


Question: List USB devices on OSX command line


Question: How can I mount an ext4 file system on OS X?


Question: How can I open a Terminal window directly from my current Finder location?


Question: What is the `installd` process, and why is it eating my CPU?


Question: What can I do when my SSH session is stuck?


Question: Why is it not possible to use the cut command to manipulate a file in the Finder?


Question: Restarting sound service?


Question: How to simulate slow internet connections on the mac


Question: What happens if you plug more than one charger in the new MacBook Pro (2016)?


Question: Is it safe to delete ~/Library/Caches?


Question: Move through images in a folder with Preview.app


Question: Change canvas size in Preview.app without scaling image?


Question: Where can I download Safari for Windows?


Question: Using The Terminal Command to Shutdown, Restart and Sleep My Mac?


Question: How to turn off all animations on OS X


Question: How to investigate high kernel task memory usage?


Question: How to record both screen and sound with Quicktime on El Capitan?


Question: OS X computer name not matching what shows on terminal


Question: How can I copy files from my Mac to PC via Microsoft Remote Desktop?


Question: Should I disconnect my MacBook Pros power cord when the battery is fully charged?


Question: How to stop OS X from writing Spotlight and Trash files to memory cards and USB sticks?


Question: How to change the default behaviour of the fullscreen/maximize button?


Question: How do I run a .sh or .command file in Terminal


Question: How can I find color codes on Mac?


Question: Mail App keeps popping up in the background in Mac OS Mojave


Question: How to arrange two windows easily to left and right side?


Question: Keyboard shortcut to switch focus between multiple displays on OS X 10.9+


Question: How do I delete all Terminal mail?


Question: List all devices connected, lsblk for Mac OS X


Question: How can I keep my Mac awake AND locked?


Question: How to turnoff screen / lock Macbook Pro with touch bar using keyboard?


Question: Silencing Your disk is almost full notification


Question: cmd-tab behavior on Mavericks with multiple displays


Question: Is there a way to convert audio files in Mac OS X or the command line without using iTunes?


Question: Convert .mov to .mp4


Question: How to upgrade OpenSSL in OS X?


Question: How can I prevent an SSH session from hanging in OS X Terminal?


Question: Unable to modify the volume with the keyboard


Question: How to fix homebrew error: invalid active developer path after upgrade to OS X El Capitan?


Question: How to bring back multi-touch gestures after it crashes without reboot?


Question: How do I move a window whose title bar is off-screen?


Question: Remember window sizes and placement when unplugging and replugging second monitor


Question: Ctrl + Alt + Delete: Mac Equivalent?


Question: Can anyone recommend an app for creating flowcharts and diagrams?


Question: How can I make auto-hide/show for the dock faster?


Question: Installing .pkg with terminal ?


Question: Replace Text Edit as the default text editor


Question: What is the format of a .xip file


Question: The volume cant be ejected because its currently in use


Question: runaway distnoted process