NAME

comm - select or reject lines common to two sorted files

SYNOPSIS

comm [ -123 ] file1 file2

DESCRIPTION

Comm reads lines from 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.

Each option digit or suppresses printing of the corresponding column.

EXAMPLE

comm -12 file1 file2

Print lines common to two sorted files.

SOURCE

/appl/cmd/comm.b

SEE ALSO

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