1. Executable programs or shell commands
CMPSection: User Commands (1)
Updated: August 2021
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NAMEcmp - compare two files byte by byte
SYNOPSIScmp [OPTION]... FILE1 [FILE2 [SKIP1 [SKIP2]]]
DESCRIPTIONCompare 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
- 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.
AUTHORWritten by Torbjorn Granlund and David MacKenzie.
REPORTING BUGSReport bugs to: email@example.com
GNU diffutils home page: <https://www.gnu.org/software/diffutils/>
General help using GNU software: <https://www.gnu.org/gethelp/>
COPYRIGHTCopyright © 2021 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.
SEE ALSOdiff(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.
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