NAME

       comm - Compare two sorted files 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.

SYNOPSIS

       comm  [-1  ] [-2 ] [-3 ] [--output-delimiter] [-z|--zero-terminated] [--total] [-h|--help]
       [-V|--version] <FILE1> <FILE2>

DESCRIPTION

       Compare two sorted files 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.

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)

       --output-delimiter=STR
              separate columns with STR

       -z, --zero-terminated
              line delimiter is NUL, not newline

       --total
              output a summary

       -h, --help
              Print help

       -V, --version
              Print version

       <FILE1>

       <FILE2>

VERSION

       v0.0.20

                                           comm 0.0.20                                    comm(1)