comm(1)
comm(1) - Linux manual page
NAME
comm - compare two sorted files line by line
SYNOPSIS
comm [OPTION]... FILE1 FILE2
DESCRIPTION
Compare sorted files FILE1 and FILE2 line by line.
When FILE1 or FILE2 (not both) is '-', read standard input.
With no options, produce three-column output:
- Column one contains lines unique to FILE1
- Column two contains lines unique to FILE2
- Column three contains lines common to both files
Options
- -1 Suppress column 1 (lines unique to FILE1)
- -2 Suppress column 2 (lines unique to FILE2)
- -3 Suppress column 3 (lines that appear in both files)
- --check-order Check that the input is correctly sorted, even if all input lines are pairable
- --nocheck-order Do not check that the input is correctly sorted
- --output-delimiter=STR Separate columns with STR
- --total Output a summary
- -z, --zero-terminated Line delimiter is NUL, not newline
- --help Display this help and exit
- --version Output version information and exit
Comparisons honor the rules specified by 'LC_COLLATE'.
EXAMPLES
comm -12 file1 file2
- Print only lines present in both file1 and file2.
comm -3 file1 file2
- Print lines in file1 not in file2, and vice versa.
AUTHOR
Written by Richard M. Stallman and David MacKenzie.
REPORTING BUGS
GNU coreutils online help: https://www.gnu.org/software/coreutils/
Report any translation bugs to: https://translationproject.org/team/
COPYRIGHT
Copyright © 2025 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later https://gnu.org/licenses/gpl.html.
This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.
SEE ALSO
Full documentation: https://www.gnu.org/software/coreutils/comm
or available locally via:
info '(coreutils) comm invocation'
COLOPHON
This page is part of the coreutils (basic file, shell, and text manipulation utilities) project. Information about the project can be found at: http://www.gnu.org/software/coreutils/
If you have a bug report for this manual page, see: http://www.gnu.org/software/coreutils/
This page was obtained from the tarball coreutils-9.6.tar.xz fetched from: http://ftp.gnu.org/gnu/coreutils/
on 2025-02-02. If you discover any rendering problems in this HTML version of the page, or you believe there is a better or more up-to-date source for the page, or you have corrections or improvements to the information in this COLOPHON (which is not part of the original manual page), send an email to: man-pages@man7.org.
GNU coreutils 9.6 January 2025 COMM(1)
Sidslut
Orginalhemsidan på Engelska :https://man7.org/linux/man-pages/man1/comm.1.html
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