Name

comm — compare two sorted files line by line

Synopsis

comm [OPTION...] FILE1 FILE2

DESCRIPTION

Compare sorted files FILE1 and FILE2 line by line.

With no options, produce three−column output. Column one contains lines unique to FILE1, column two contains lines unique to FILE2, and column three contains lines common to both files.

−1

suppress lines unique to FILE1

−2

suppress lines unique to FILE2

−3

suppress lines that appear in both files

−−help

display this help and exit

−−version

output version information and exit

AUTHOR

Written by Richard Stallman and David MacKenzie.

REPORTING BUGS

Report bugs to <bug−coreutils@gnu.org>.

SEE ALSO

The full documentation for comm is maintained as a Texinfo manual. If the info and comm programs are properly installed at your site, the command

info comm

should give you access to the complete manual.

COPYRIGHT

Copyright © 2007 Free Software Foundation, Inc.

This is free software. You may redistribute copies of it under the terms of the GNU General Public License <http://www.gnu.org/licenses/gpl.html>. There is NO WARRANTY, to the extent permitted by law.