comm(1) - phpMan

COMM(1)                          User Commands                         COMM(1)
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,  and
       column three contains lines common to both files.
       -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
       Note, 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 comm translation bugs to <https://translationproject.org/team/>;
COPYRIGHT
       Copyright (C) 2018 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
       join(1), uniq(1)
       Full documentation at: <https://www.gnu.org/software/coreutils/comm>;
       or available locally via: info '(coreutils) comm invocation'
GNU coreutils 8.30                 July 2018                           COMM(1)