comm man page on 4.4BSD

Man page or keyword search:  
man Server   1065 pages
apropos Keyword Search (all sections)
Output format
4.4BSD logo
[printable version]

COMM(1)			  BSD General Commands Manual		       COMM(1)

NAME
     comm — select or reject lines common to two files

SYNOPSIS
     comm [-123] file1 file2

DESCRIPTION
     The comm utility reads file1 and file2, which should be sorted lexically,
     and produces three text columns as output: lines only in file1; lines
     only in file2; and lines in both files.

     The filename ``-'' means the standard input.

     The following options are available:

     -1	     Suppress printing of column 1.

     -2	     Suppress printing of column 2.

     -3	     Suppress printing of column 3.

     Each column will have a number of tab characters prepended to it equal to
     the number of lower numbered columns that are being printed.  For exam‐
     ple, if column number two is being suppressed, lines printed in column
     number one will not have any tabs preceding them, and lines printed in
     column number three will have one.

     Comm assumes that the files are lexically sorted; all characters partici‐
     pate in line comparisons.

     Comm exits 0 on success, >0 if an error occurred.

SEE ALSO
     cmp(1), diff(1), sort(1), uniq(1)

STANDARDS
     The comm command is expected to be POSIX 1003.2 compatible.

BSD				 June 6, 1993				   BSD
[top]

List of man pages available for 4.4BSD

Copyright (c) for man pages and the logo by the respective OS vendor.

For those who want to learn more, the polarhome community provides shell access and support.

[legal] [privacy] [GNU] [policy] [cookies] [netiquette] [sponsors] [FAQ]
Tweet
Polarhome, production since 1999.
Member of Polarhome portal.
Based on Fawad Halim's script.
...................................................................
Vote for polarhome
Free Shell Accounts :: the biggest list on the net