COMM(1) General Commands Manual COMM(1)
NAME
comm - print lines common to two sorted files
SYNOPSIS
comm [-123] file1 file2
OPTIONS
-1 Suppress column 1 (lines present only in file1)
-2 Suppress column 2 (lines present only in file2)
-3 Suppress column 3 (lines present in both files)
EXAMPLES
comm file1 file2 # Print all three columns
comm -12 file1 file2
# Print only lines common to both files
DESCRIPTION
Two sorted files are read and compared. A three column listing is produced. Files only in file1 are in column 1; files only in file2 are
in column 2; files common to both files are in column 3. The file name - means stdin.
SEE ALSO
cmp(1), diff(1), sort(1).
COMM(1)
