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Annotation of 43BSDReno/usr.bin/cmp/cmp.1, revision 1.1.1.1

1.1       root        1: .\" Copyright (c) 1987, 1990 The Regents of the University of California.
                      2: .\" All rights reserved.
                      3: .\"
                      4: .\" Redistribution and use in source and binary forms are permitted provided
                      5: .\" that: (1) source distributions retain this entire copyright notice and
                      6: .\" comment, and (2) distributions including binaries display the following
                      7: .\" acknowledgement:  ``This product includes software developed by the
                      8: .\" University of California, Berkeley and its contributors'' in the
                      9: .\" documentation or other materials provided with the distribution and in
                     10: .\" all advertising materials mentioning features or use of this software.
                     11: .\" Neither the name of the University nor the names of its contributors may
                     12: .\" be used to endorse or promote products derived from this software without
                     13: .\" specific prior written permission.
                     14: .\" THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
                     15: .\" WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
                     16: .\" MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
                     17: .\"
                     18: .\"     @(#)cmp.1      6.4 (Berkeley) 7/24/90
                     19: .\"
                     20: .Dd July 24, 1990
                     21: .Dt CMP 1
                     22: .Os BSD 4.4
                     23: .Sh NAME
                     24: .Nm cmp
                     25: .Nd Compare two files.
                     26: .Sh SYNOPSIS
                     27: .Nm cmp
                     28: .Op Fl l Li \&| Fl s
                     29: .Ar file1 file2
                     30: .Sh DESCRIPTION
                     31: The cmp utility compares two files of any type and
                     32: writes the results to the standard output.
                     33: Under default options,
                     34: .Nm
                     35: is silent
                     36: if the files are the same; if they
                     37: differ, the byte and line
                     38: number at which the first difference occurred is reported.
                     39: Bytes and
                     40: lines are numbered beginning with one.
                     41: .Pp
                     42: The following options are available:
                     43: .Tw Ds
                     44: .Tp Fl l
                     45: Print the byte number (decimal) and the differing
                     46: byte values (octal) for each difference, respectively.
                     47: .Tp Fl s
                     48: Print nothing for differing files; return exit
                     49: status only.
                     50: .Tp
                     51: .Pp
                     52: The following operands are available:
                     53: .Tw file1
                     54: .Tp Ar file1
                     55: A pathname of the first file to be compared.
                     56: If
                     57: .Ar file1
                     58: is
                     59: .Sq Fl ,
                     60: the standard input is used.
                     61: .Tp Ar file2
                     62: A pathname of the second file to be compared.
                     63: .Tp
                     64: .Pp
                     65: The
                     66: .Nm cmp
                     67: utility exits with one of the following values:
                     68: .Tw Ds
                     69: .Tp 0
                     70: The files are identical.
                     71: .Tp 1
                     72: The files are different; this includes the case
                     73: where one file is identical to the first part of
                     74: the other.
                     75: In the latter case, if the
                     76: .Fl s
                     77: option has
                     78: not been specified, cmp writes to standard error
                     79: that EOF was reached in the shorter file (before
                     80: any differences were found).
                     81: .Tp >1
                     82: An error occurred.
                     83: .Tp
                     84: .Sh SEE ALSO
                     85: .Xr diff 1 ,
                     86: .Xr diff3 1
                     87: .Sh STANDARDS
                     88: The
                     89: .Nm cmp
                     90: function is expected to be POSIX 1003.2 compatible.
                     91: This manual page is derived from the POSIX 1003.2 manual page.

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