| COMM(1) | User Commands | COMM(1) |
comm - select or reject lines common to two sorted files
comm [-123] file1 file2
Comm reads file1 and file2, which should be ordered in the current collating sequence, and produces a three column output: lines only in file1; lines only in file2; and lines in both files. The filename `-' means the standard input.
Flags 1, 2, or 3 suppress printing of the corresponding column. Thus comm -12 prints only the lines common to the two files; comm -23 prints only lines in the first file but not in the second; comm -123 is a no-op.
cmp(1), diff(1), uniq(1), locale(7)
| 3/16/03 | Heirloom Toolchest |