comm (1) - Linux Man Pages
comm: compare two sorted files line by line
NAMEcomm - compare two sorted files line by line
SYNOPSIScomm [OPTION]... FILE1 FILE2
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.
- suppress column 1 (lines unique to FILE1)
- suppress column 2 (lines unique to FILE2)
- suppress column 3 (lines that appear in both files)
- check that the input is correctly sorted, even if all input lines are pairable
- do not check that the input is correctly sorted
- separate columns with STR
- display this help and exit
- output version information and exit
- 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.
AUTHORWritten by Richard M. Stallman and David MacKenzie.
COPYRIGHTCopyright © 2013 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.
SEE ALSOjoin(1), uniq(1)
The full documentation for comm is maintained as a Texinfo manual. If the info and comm programs are properly installed at your site, the command
- info coreutils 'comm invocation'
should give you access to the complete manual.
Linux man pages generated by: SysTutorials