[unix-history] / usr / src / usr.bin / comm / comm.1

.\"	@(#)comm.1	6.1 (Berkeley) %G%
.\"
.TH COMM 1 ""
.AT 3
.SH NAME
comm \- select or reject lines common to two sorted files
.SH SYNOPSIS
.B comm
[
.B \-
[
.B 123
]
] file1 file2
.SH DESCRIPTION
.I Comm
reads
.I file1
and
.I file2,
which should be ordered in ASCII collating sequence,
and produces a three column output: lines only in
.I file1;
lines only in
.I file2;
and lines in both files.
The filename `\-' means the standard input.
.PP
Flags 1, 2, or 3 suppress printing of the corresponding
column.
Thus
.B comm
.B \-12
prints only the lines common to the two files;
.B comm
.B \-23
prints only lines in the first file but not in the second;
.B comm
.B \-123
is a no-op.
.PP
.SH "SEE ALSO"
cmp(1), diff(1), uniq(1)
Commit	Line	Data
daa8094e	1	.\" @(#)comm.1 6.1 (Berkeley) %G%
d3b83d9f	2	.\"
daa8094e	3	.TH COMM 1 ""
d3b83d9f KM	4	.AT 3
	5	.SH NAME
	6	comm \- select or reject lines common to two sorted files
	7	.SH SYNOPSIS
	8	.B comm
	9	[
	10	.B \-
	11	[
	12	.B 123
	13	]
	14	] file1 file2
	15	.SH DESCRIPTION
	16	.I Comm
	17	reads
	18	.I file1
	19	and
	20	.I file2,
	21	which should be ordered in ASCII collating sequence,
	22	and produces a three column output: lines only in
	23	.I file1;
	24	lines only in
	25	.I file2;
	26	and lines in both files.
	27	The filename `\-' means the standard input.
	28	.PP
	29	Flags 1, 2, or 3 suppress printing of the corresponding
	30	column.
	31	Thus
	32	.B comm
	33	.B \-12
	34	prints only the lines common to the two files;
	35	.B comm
	36	.B \-23
	37	prints only lines in the first file but not in the second;
	38	.B comm
	39	.B \-123
	40	is a no-op.
	41	.PP
	42	.SH "SEE ALSO"
	43	cmp(1), diff(1), uniq(1)