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comm.1
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COMM(1L) MISC. REFERENCE MANUAL PAGES COMM(1L)
NAME
comm - compare two sorted files line by line
SYNOPSIS
comm [-123] file1 file2
DESCRIPTION
This manual page documents the GNU version of comm. comm
prints lines that are common, and lines that are unique, to
two input files. The two files must be sorted before comm
can be used. The file name `-' means the standard input.
With no options, comm produces three column output. Column
one contains lines unique to _f_i_l_e_1, column two contains
lines unique to _f_i_l_e_2, and column three contains lines com-
mon to both files.
OPTIONS
The options -_1, -_2, and -_3 suppress printing of the
corresponding columns.
Sun Release 4.1 Last change: 1