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COMM(1) | User Commands | COMM(1) |
NAME¶
comm - compare two sorted files line by lineSYNOPSIS¶
comm [ OPTION]... FILE1 FILE2DESCRIPTION¶
Compare sorted files FILE1 and FILE2 line by line. With no options, produce 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.- -1
- suppress column 1 (lines unique to FILE1)
- -2
- suppress column 2 (lines unique to FILE2)
- -3
- suppress column 3 (lines that appear in both files)
- --check-order
- check that the input is correctly sorted, even if all input lines are pairable
- --nocheck-order
- do not check that the input is correctly sorted
- --output-delimiter=STR
- separate columns with STR
- --help
- display this help and exit
- --version
- output version information and exit
EXAMPLES¶
- comm -12 file1 file2
- Print only lines present in both file1 and file2.
- comm -3 file1 file2
- Print lines in file1 not in file2, and vice versa.
AUTHOR¶
Written by Richard M. Stallman and David MacKenzie.REPORTING BUGS¶
GNU coreutils online help: <http://www.gnu.org/software/coreutils/>COPYRIGHT¶
Copyright © 2014 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.SEE ALSO¶
join(1), uniq(1) Full documentation at: <http://www.gnu.org/software/coreutils/comm>March 2015 | GNU coreutils 8.23 |