comm - select or reject lines common to two sorted files
SYNOPSIS
comm
[
-123
]
file1 file2
DESCRIPTION
Comm
reads
file1
and
file2,
which are in lexicographical order,
and produces a three column output: lines only in
file1;
lines only in
file2;
and lines in both files.
The file name
-
means the standard input.
Flag
1,
2,
or
3
suppresses printing of the corresponding
column.