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 /sys/src/cmd/comm.c
SH "SEE ALSO"
IR sort (1),
IR cmp (1),
IR diff (1),
IR uniq (1)
