4.3BSD-Reno/share/man/cat1/cmp.0

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CMP(1)			    UNIX Reference Manual			CMP(1)

NNAAMMEE
     ccmmpp - Compare two files.

SSYYNNOOPPSSIISS
     ccmmpp [--ll | --ss] _f_i_l_e_1 _f_i_l_e_2

DDEESSCCRRIIPPTTIIOONN
     The cmp utility compares two files of any type and writes the results to
     the standard output.  Under default options, ccmmpp 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 following options are available:

     --ll    Print the byte number (decimal) and the differing byte values (oc-
	   tal) for each difference, respectively.

     --ss    Print nothing for differing files; return exit status only.

     The following operands are available:

     _f_i_l_e_1   A pathname of the first file to be compared.  If _f_i_l_e_1 is `--',
	     the standard input is used.

     _f_i_l_e_2   A pathname of the second file to be compared.

     The ccmmpp utility exits with one of the following values:

     0	   The files are identical.

     1	   The files are different; this includes the case where one file is
	   identical to the first part of the other.  In the latter case, if
	   the --ss option has not been specified, cmp writes to standard error
	   that EOF was reached in the shorter file (before any differences
	   were found).

     >1    An error occurred.

SSEEEE AALLSSOO
     diff(1), diff3(1)

SSTTAANNDDAARRDDSS
     The ccmmpp function is expected to be POSIX 1003.2 compatible.  This manual
     page is derived from the POSIX 1003.2 manual page.