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1992-07-18
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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 file1, column two contains lines unique to file2, and
column three contains lines common to both files.
OPTIONS
The options -1, -2, and -3 suppress printing of the corresponding
columns.