usr/share/man/cat1/cmp.0

CMP(1)                      UNIX Reference Manual                       CMP(1)

N\bNA\bAM\bME\bE
     c\bcm\bmp\bp - Compare two files.

S\bSY\bYN\bNO\bOP\bPS\bSI\bIS\bS
     c\bcm\bmp\bp [-\b-l\bl | -\b-s\bs] _\bf_\bi_\bl_\be_\b1 _\bf_\bi_\bl_\be_\b2

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     The cmp utility compares two files of any type and writes the results to
     the standard output.  Under default options, c\bcm\bmp\bp 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:

     -\b-l\bl    Print the byte number (decimal) and the differing byte values (oc-
           tal) for each difference, respectively.

     -\b-s\bs    Print nothing for differing files; return exit status only.

     The following operands are available:

     _\bf_\bi_\bl_\be_\b1   A pathname of the first file to be compared.  If _\bf_\bi_\bl_\be_\b1 is `-\b-',
             the standard input is used.

     _\bf_\bi_\bl_\be_\b2   A pathname of the second file to be compared.

     The c\bcm\bmp\bp 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 -\b-s\bs 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.

S\bSE\bEE\bE A\bAL\bLS\bSO\bO
     diff(1), diff3(1)

S\bST\bTA\bAN\bND\bDA\bAR\bRD\bDS\bS
     The c\bcm\bmp\bp function is expected to be POSIX 1003.2 compatible.  This manual
     page is derived from the POSIX 1003.2 manual page.