COMM(1)

NAME
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 or suppresses printing of the corresponding column.

EXAMPLE

comm -12 file1 file2

    Print lines common to two sorted files.

SOURCE
/src/cmd/comm.c

SEE ALSO
sort((1)), cmp(1), diff(1), uniq((1))