NAME

cmp − perform a byte-by-byte comparison of two files

SYNOPSIS

cmp [ −ls ] filename1 filename2 [ skip1 ] [ skip2 ]

DESCRIPTION

cmp compares filename1 and filename2. If filename1 is ‘−’, the standard input is used.  With no options, cmp makes no comment if the files are the same; if they differ, it reports the byte and line number at which the difference occurred, or, that one file is an initial subsequence of the other.  skip1 and skip2 are initial byte offsets into filename1 and filename2 respectively, and may be either octal or decimal; a leading 0 denotes octal. 

OPTIONS

−l Print the byte number (in decimal) and the differing bytes (in octal) for all differences between the two files. 

−s Silent. Print nothing for differing files; set exit codes only. 

SEE ALSO

comm(1), diff(1)

DIAGNOSTICS

Exit code 0 is returned for identical files, 1 for different files, and 2 for an inaccessible or missing argument, or a system error. 

Sun Release 4.0  —  Last change: 23 November 1987