# capinfos

## NAME



           capinfos - Prints information about capture files
    


## SYNOPSIS



           **capinfos**[ **-a**] [ **-A**] [ **-b**] [ **-B**] [ **-c**] [ **-C**] [ **-d**] [ **-D**] [
           **-e**] [ **-E**] [ **-F**] [ **-h**] [ **-H**] [ **-i**] [ **-I**] [ **-k**] [ **-K**] [ **-l**
           ] [ **-L**] [ **-m**] [ **-M**] [ **-n**] [ **-N**] [ **-o**] [ **-p**] [ **-P**] [ **-q**] [
           **-Q**] [ **-r**] [ **-R**] [ **-s**] [ **-S**] [ **-t**] [ **-T**] [ **-u**] [ **-v**] [ **-x**
           ] [ **-y**] [ **-z**] <_infile_ > _..._
    
           **capinfos -h|--help**
    
           **capinfos -v|--version**
    


## DESCRIPTION



           **Capinfos** is a program that reads one or more capture files and
           returns some or all available statistics (infos) of each <_infile_ >
           in one of two types of output formats: long or table.
    
           The long output is suitable for a human to read. The table output
           is useful for generating a report that can be easily imported into
           a spreadsheet or database.
    
           The user specifies what type of output (long or table) and which
           statistics to display by specifying flags (options) that
           corresponding to the report type and desired infos. If no options
           are specified, **Capinfos** will report all statistics available in
           "long" format.
    
           Options are processed from left to right order with later options
           superseding or adding to earlier options.
    
           **Capinfos** is able to detect and read the same capture files that
           are supported by **Wireshark**. The input files don’t need a specific
           filename extension; the file format and an optional gzip, zstd or
           lz4 compression will be automatically detected. Near the beginning
           of the DESCRIPTION section of wireshark(1) or
           https://www.wireshark.org/docs/man-pages/wireshark.html is a
           detailed description of the way **Wireshark** handles this, which is
           the same way **Capinfos** handles this.
    


## OPTIONS



           -a
               Displays the timestamp of the earliest packet in the capture.
               The earliest packet in the capture is not necessarily the
               first packet in the capture - if packets exist "out-of-order",
               time-wise, in the capture, **Capinfos** detects this.
    
           -A
               Generate all infos. By default **Capinfos** will display all infos
               values for each input file, but enabling any of the individual
               display infos options will disable the generate all option.
    
           -b
    
               Separate infos with ASCII SPACE (0x20) characters. This option
               is only useful when generating a table style report (-T). The
               various info values will be separated (delimited) from one
               another with a single ASCII SPACE character.
    
                   **Note**
    
                   Since some of the header labels as well as some of the
                   value fields contain SPACE characters. This option is of
                   limited value unless one of the quoting options (-q or -Q)
                   is also specified.
    
           -B
               Separate the infos with ASCII TAB characters. This option is
               only useful when generating a table style report (-T). The
               various info values will be separated (delimited) from one
               another with a single ASCII TAB character. The TAB character
               is the default delimiter when -T style report is enabled.
    
           -c
               Displays the number of packets in the capture file.
    
           -C
    
               Cancel processing any additional files if and when **Capinfos**
               fails to open an input file or gets an error reading an input
               file. By default **Capinfos** will continue processing files even
               if it gets an error opening or reading a file.
    
               Note: An error message will be written to stderr whenever
               **Capinfos** fails to open a file or gets an error reading from a
               file regardless whether the -C option is specified or not.
               Upon exit, **Capinfos** will return an error status if any errors
               occurred during processing.
    
           -d
               Displays the total length of all packets in the file, in
               bytes. This counts the size of the packets as they appeared in
               their original form, not as they appear in this file. For
               example, if a packet was originally 1514 bytes and only 256 of
               those bytes were saved to the capture file (if packets were
               captured with a snaplen or other slicing option), **Capinfos**
               will consider the packet to have been 1514 bytes.
    
           -D
               Displays a count of the number of decryption secrets in the
               file. This information is not available in table format.
    
           -e
               Displays the timestamp of the latest packet in the capture.
               The latest packet in the capture is not necessarily the last
               packet in the capture
    
               •   if packets exist "out-of-order", time-wise, in the
                   capture, **Capinfos** detects this.
    
           -E
               Displays the per-file encapsulation of the capture file.
    
           -F
               Displays additional capture file information.
    
           -h|--help
               Print the version number and options and exit.
    
           -H
               Displays the SHA256 and SHA1 hashes for the file. SHA1 output
               may be removed in the future.
    
           -i
               Displays the average data rate, in bits/sec
    
           -I
               Displays detailed capture file interface information. This
               information is not available in table format.
    
           -k
               Displays the capture comment. For pcapng files, this is the
               comment from the section header block.
    
           -K
               Use this option to suppress printing capture comments. By
               default capture comments are enabled. Capture comments are
               relatively freeform and might contain embedded new-line
               characters and/or other delimiting characters making it harder
               for a human or machine to easily parse the **Capinfos** output.
               Excluding capture comments can aid in post-processing of
               output.
    
           -l
               Display the snaplen (if any) for a file. snaplen (if
               available) is determined from the capture file header and by
               looking for truncated records in the capture file.
    
           -L
               Generate long report. **Capinfos** can generate two different
               styles of reports. The "long" report is the default style of
               output and is suitable for a human to use.
    
           -m
               Separate the infos with comma (,) characters. This option is
               only useful when generating a table style report (-T). The
               various info values will be separated (delimited) from one
               another with a single comma "," character.
    
           -M
               Print raw (machine readable) values in long reports. By
               default **Capinfos** prints numeric values with human-readable SI
               suffixes, and shows human-readable file type and
               encapsulation. Table reports (-T) always print raw values.
    
           -n
               Displays a count of the number of resolved IPv4 addresses and
               a count of the number of resolved IPv6 addresses in the file.
               This information is not available in table format.
    
           -N
               Do not quote the infos. This option is only useful when
               generating a table style report (-T). Excluding any quoting
               characters around the various values and using a TAB delimiter
               produces a very "clean" table report that is easily parsed
               with CLI tools. By default infos are **NOT** quoted.
    
           -o
               Displays "True" if packets exist in strict chronological order
               or "False" if one or more packets in the capture exists
               "out-of-order" time-wise.
    
           -p
               Display individual packet comments. It is recommended to print
               raw values (-M) when using this option as packet comments may
               include newlines and other special characters.
    
           -P
               Disable displaying individual packet comments.
    
           -q
               Quote infos with single quotes ('). This option is only useful
               when generating a table style report (-T). When this option is
               enabled, each value will be encapsulated within a pair of
               single quote (') characters. This option (when used  with the
               -m option) is useful for generating one type of CSV style file
               report.
    
           -Q
               Quote infos with double quotes ("). This option is only useful
               when generating a table style report (-T). When this option is
               enabled, each value will be encapsulated within a pair of
               double quote (") characters. This option (when used with the
               -m option) is useful for generating the most common type of
               CSV style file report.
    
           -r
               Do not generate header record. This option is only useful when
               generating a table style report (-T). If this option is
               specified then **no** header record will be generated within the
               table report.
    
           -R
               Generate header record. This option is only useful when
               generating a table style report (-T). A header is generated by
               default. A header record (if generated) is the first line of
               data reported and includes labels for all the columns included
               within the table report.
    
           -s
               Displays the size of the file, in bytes. This reports the size
               of the capture file itself.
    
           -S
               Display the earliest and latest packet timestamps as seconds
               since January 1, 1970. Handy for synchronizing dumps using
               **editcap -t**.
    
           -t
               Displays the capture type of the capture file.
    
           -T
               Generate a table report. A table report is a text file that is
               suitable for importing into a spreadsheet or database.
               **Capinfos** can build a tab delimited text file (the default) or
               several variations on Comma-separated values (CSV) files.
    
           -u
               Displays the capture duration, in seconds. This is the
               difference in time between the earliest packet seen and latest
               packet seen.
    
           -v|--version
               Print the full version information and exit.
    
           -x
               Displays the average packet rate, in packets/sec
    
           -y
               Displays the average data rate, in bytes/sec
    
           -z
               Displays the average packet size, in bytes
    


## DIAGNOSTIC OPTIONS



           --log-level <level>
               Set the active log level. Supported levels in lowest to
               highest order are "noisy", "debug", "info", "message",
               "warning", "critical", and "error". Messages at each level and
               higher will be printed, for example "warning" prints
               "warning", "critical", and "error" messages and "noisy" prints
               all messages. Levels are case insensitive.
    
           --log-fatal <level>
               Abort the program if any messages are logged at the specified
               level or higher. For example, "warning" aborts on any
               "warning", "critical", or "error" messages.
    
           --log-domains <list>
               Only print messages for the specified log domains, e.g.
               "GUI,Epan,sshdump". List of domains must be comma-separated.
               Can be negated with "!" as the first character (inverts the
               match).
    
           --log-debug <list>
               Force the specified domains to log at the "debug" level. List
               of domains must be comma-separated. Can be negated with "!" as
               the first character (inverts the match).
    
           --log-noisy <list>
               Force the specified domains to log at the "noisy" level. List
               of domains must be comma-separated. Can be negated with "!" as
               the first character (inverts the match).
    
           --log-fatal-domains <list>
               Abort the program if any messages are logged for the specified
               log domains. List of domains must be comma-separated.
    
           --log-file <path>
               Write log messages and stderr output to the specified file.
    


## EXAMPLES



           To see a description of the options use:
    
               capinfos -h
    
           To generate a long form report for the capture file mycapture.pcap
           use:
    
               capinfos mycapture.pcap
    
           To generate a TAB delimited table form report for the capture file
           mycapture.pcap use:
    
               capinfos -T mycapture.pcap
    
           To generate a CSV style table form report for the capture file
           mycapture.pcap use:
    
               capinfos -T -m -Q mycapture.pcap
    
           or
    
               capinfos -TmQ mycapture.pcap
    
           To generate a TAB delimited table style report with just the
           filenames, capture type, capture encapsulation type and packet
           count for all the pcap files in the current directory use:
    
               capinfos -T -t -E -c *.pcap
    
           or
    
               capinfos -TtEc *.pcap
    
           Note: The ability to use of filename globbing characters are a
           feature of *nix style command shells.
    
           To generate a CSV delimited table style report of all infos for
           all pcap files in the current directory and write it to a text
           file called mycaptures.csv use:
    
               capinfos -TmQ *.pcap >mycaptures.csv
    
           The resulting mycaptures.csv file can be easily imported into
           spreadsheet applications.
    


## NOTES



           This is the manual page for **Capinfos** 4.5.0. **Capinfos** is part of
           the **Wireshark** distribution. The latest version of **Wireshark** can be
           found at https://www.wireshark.org.
    
           HTML versions of the Wireshark project man pages are available at
           https://www.wireshark.org/docs/man-pages.
    


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