COMM(1) 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 ordered in ASCII col-
lating 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.
Flag `1', `2', or `3' suppresses printing of the correspond-
ing column.
EXAMPLES
comm -12 file1 file2
Print lines common to two sorted files.
deroff -w /usr/lib/upas/names.last | tr a-z A-Z | sort -
u >temp
spell temp | comm -13 - temp
Print names that are known both to mail(1) and spell(1)
SEE ALSO
sort(1), cmp(1), diff(1), uniq(1), join(1)