Difference between revisions of "32v 1m comm"
From Computer History Wiki
(New page: COMM(1) UNIX Programmer's Manual COMM(1) == NAME == comm - select or reject lines common to two sorted files == SYNOPSIS == comm [ - [ 123 ] ] file1 ...) |
(No difference)
|
Latest revision as of 15:23, 26 October 2009
COMM(1) UNIX Programmer's Manual COMM(1)
Contents
NAME
comm - select or reject lines common to two sorted files
SYNOPSIS
comm [ - [ 123 ] ] file1 file2
DESCRIPTION
_C_o_m_m reads _f_i_l_e_1 and _f_i_l_e_2, which should be ordered in ASCII collating sequence, and produces a three column output: lines only in _f_i_l_e_1; lines only in _f_i_l_e_2; and lines in both files. The filename `-' means the standard input.
Flags 1, 2, or 3 suppress printing of the corresponding column. Thus comm -12 prints only the lines common to the two files; comm -23 prints only lines in the first file but not in the second; comm -123 is a no-op.
SEE ALSO
cmp(1), diff(1), uniq(1)