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- .th COMM I 5/15/74
- .sh NAME
- comm \*- print lines common to two files
- .sh SYNOPSIS
- .bd comm
- [
- .bd \*-
- [
- .bd 123
- ]
- ] file1 file2
- .sh DESCRIPTION
- .it Comm
- reads
- .it file1
- and
- .it file2,
- which should be in sort,
- and produces a three column output: lines only in
- .it file1;
- lines only in
- .it file2;
- and lines in both files.
- The filename `\*-' means the standard input.
- .s3
- Flags 1, 2, or 3 suppress printing of the corresponding
- column.
- Thus
- .bd comm
- .bd \*-12
- prints only the lines common to the two files;
- .bd comm
- .bd \*-23
- prints only lines in the first file but not in the second;
- .bd comm
- .bd \*-123
- is a no-op.
- .s3
- .sh "SEE ALSO"
- cmp (I), diff (I)
- .sh BUGS
-