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- COMM(1L) COMM(1L)
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- NAME
- comm - compare two sorted files line by line
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- SYNOPSIS
- comm [-123] [--help] [--version] file1 file2
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- 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.
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- With no options, comm produces three column output. Col-
- umn one contains lines unique to file1, column two con-
- tains lines unique to file2, and column three contains
- lines common to both files.
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- OPTIONS
- The options -1, -2, and -3 suppress printing of the corre-
- sponding columns.
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- --help Print a usage message and exit with a non-zero sta-
- tus.
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- --version
- Print version information on standard error then
- exit.
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- FSF GNU Text Utilities 1
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