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HTML rendering created 2025-09-06 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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NAME | SYNOPSIS | DESCRIPTION | AUTHOR | REPORTING BUGS | COPYRIGHT | SEE ALSO | COLOPHON |
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CMP(1) User Commands CMP(1)
cmp - compare two files byte by byte
cmp [OPTION]... FILE1 [FILE2 [SKIP1 [SKIP2]]]
Compare two files byte by byte.
The optional SKIP1 and SKIP2 specify the number of bytes to skip
at the beginning of each file (zero by default).
Mandatory arguments to long options are mandatory for short
options too.
-b, --print-bytes
print differing bytes
-i, --ignore-initial=SKIP
skip first SKIP bytes of both inputs
-i, --ignore-initial=SKIP1:SKIP2
skip first SKIP1 bytes of FILE1 and first SKIP2 bytes of
FILE2
-l, --verbose
output byte numbers and differing byte values
-n, --bytes=LIMIT
compare at most LIMIT bytes
-s, --quiet, --silent
suppress all normal output
--help display this help and exit
-v, --version
output version information and exit
SKIP values may be followed by the following multiplicative
suffixes: kB 1000, K 1024, MB 1,000,000, M 1,048,576, GB
1,000,000,000, G 1,073,741,824, and so on for T, P, E, Z, Y.
If a FILE is '-' or missing, read standard input. Exit status is
0 if inputs are the same, 1 if different, 2 if trouble.
Written by Torbjorn Granlund and David MacKenzie.
Report bugs to: bug-diffutils@gnu.org
GNU diffutils home page: <https://www.gnu.org/software/diffutils/>
General help using GNU software: <https://www.gnu.org/gethelp/>
Copyright © 2025 Free Software Foundation, Inc. License GPLv3+:
GNU GPL version 3 or later <https://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.
diff(1), diff3(1), sdiff(1)
The full documentation for cmp is maintained as a Texinfo manual.
If the info and cmp programs are properly installed at your site,
the command
info cmp
should give you access to the complete manual.
This page is part of the diffutils (GNU diff utilities) project.
Information about the project can be found at
⟨http://savannah.gnu.org/projects/diffutils/⟩. If you have a bug
report for this manual page, send it to bug-diffutils@gnu.org.
This page was obtained from the project's upstream Git repository
⟨git://git.savannah.gnu.org/diffutils.git⟩ on 2025-08-11. (At
that time, the date of the most recent commit that was found in
the repository was 2025-04-27.) If you discover any rendering
problems in this HTML version of the page, or you believe there is
a better or more up-to-date source for the page, or you have
corrections or improvements to the information in this COLOPHON
(which is not part of the original manual page), send a mail to
man-pages@man7.org
diffutils 3.12.8-2591 August 2025 CMP(1)
Pages that refer to this page: diff(1), diff3(1), grep(1), sdiff(1)
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HTML rendering created 2025-09-06 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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