mirror of
https://github.com/9fans/plan9port.git
synced 2025-01-12 11:10:07 +00:00
47 lines
665 B
Groff
47 lines
665 B
Groff
.TH COMM 1
|
|
.CT 1 files
|
|
.SH NAME
|
|
comm \- select or reject lines common to two sorted files
|
|
.SH SYNOPSIS
|
|
.B comm
|
|
[
|
|
.B -123
|
|
]
|
|
.I file1 file2
|
|
.SH DESCRIPTION
|
|
.I Comm
|
|
reads
|
|
.I file1
|
|
and
|
|
.IR file2 ,
|
|
which are in lexicographical order,
|
|
and produces a three column output: lines only in
|
|
.IR file1 ;
|
|
lines only in
|
|
.IR file2 ;
|
|
and lines in both files.
|
|
The file name
|
|
.L -
|
|
means the standard input.
|
|
.PP
|
|
Flag
|
|
.LR 1 ,
|
|
.LR 2 ,
|
|
or
|
|
.LR 3
|
|
suppresses printing of the corresponding
|
|
column.
|
|
.SH EXAMPLE
|
|
.TP
|
|
.EX
|
|
comm -12 file1 file2
|
|
.EE
|
|
.IP
|
|
Print lines common to two sorted files.
|
|
.SH SOURCE
|
|
.B \*9/src/cmd/comm.c
|
|
.SH "SEE ALSO"
|
|
.MR sort (1) ,
|
|
.IR cmp (1),
|
|
.IR diff (1),
|
|
.MR uniq (1)
|