Manual: comm

COMM(1)						   General Commands Manual					     COMM(1)

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]  [--check-order]  [--nocheck-order]
       [-h|--help] [-V|--version]  

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 
	      separate columns with STR

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

       --total
	      output a summary

       --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

       -h, --help
	      Print help

       -V, --version
	      Print version

       

       

VERSION
       v(uutils coreutils) 0.8.0

							 2026-04-16						     COMM(1)