CMP(1) | General Commands Manual | CMP(1) |
cmp
— compare two
files
cmp |
[-l | -s ]
file1 file2 [skip1
[skip2]] |
The cmp
utility compares two files of any
type and writes the results to the standard output. By default,
cmp
is silent if the files are the same; if they
differ, the byte and line number at which the first difference occurred is
reported.
Bytes and lines are numbered beginning with one.
The options are as follows:
-l
-s
The optional arguments skip1 and skip2 are the byte offsets from the beginning of file1 and file2, respectively, where the comparison will begin. The offset is decimal by default, but may be expressed as a hexadecimal or octal value by preceding it with a leading “0x” or “0”.
The cmp
utility exits with one of the
following values:
-s
option has not been specified,
cmp
writes to standard error that
EOF
was reached in the shorter file (before any
differences were found).The cmp
utility is compliant with the
IEEE Std 1003.1-2008 (“POSIX.1”)
specification.
The arguments skip1 and skip2 are extensions to that specification.
A cmp
command appeared in
Version 1 AT&T UNIX.
January 25, 2014 | OpenBSD-current |