TH CMP 1
SH NAME
cmp \- compare two files
SH SYNOPSIS
B cmp
[
B -lsL
]
I file1 file2
[
I offset1
[
I offset2
]
]
SH DESCRIPTION
The two files are
compared.
A diagnostic results if the contents differ, otherwise
there is no output.
PP
The options are:
TP
B l
Print the byte number (decimal) and the
differing bytes (hexadecimal) for each difference.
TP
B s
Print nothing for differing files,
but set the exit status.
TP
B L
Print the line number of the first differing byte.
PP
If offsets are given,
comparison starts at the designated byte position
of the corresponding file.
Offsets that begin with
B 0x
are hexadecimal;
with
BR 0 ,
octal; with anything else, decimal.
SH SOURCE
B /sys/src/cmd/cmp.c
SH "SEE ALSO"
IR diff (1)
SH DIAGNOSTICS
If a file is inaccessible or missing, the exit status is
LR open .
If the files are the same, the exit status is empty (true).
If they are the same except that one is longer than the other, the exit status is
LR EOF .
Otherwise
I cmp
reports the position of the first disagreeing byte and the exit status is
LR differ .

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