<refentry id="cmp">
<refnamediv>
<refname>CMP</refname>
<refpurpose>File Comparison Utility</refpurpose>
</refnamediv>

<refsynopsisdiv>
<cmdsynopsis>
<command>cmp</command>
<arg choice="plain">
  &replstart;file1&replend;
</arg>
<arg choice="plain">
  &replstart;file2&replend;
</arg>
</cmdsynopsis>
</refsynopsisdiv>

<refsect1><title>Description</title>
<para>
Opens two files and performs a comparison of the binary values of
the corresponding data bytes of the files. If any differences are
encountered, the file offset (address) and the values of the bytes
from each file are displayed in hexadecimal.
</para>
<para>
The comparison ends when end-of-file is encountered on either
file. A summary of the number of bytes compared and the number of
differences found is then displayed.
</para>
</refsect1>
<refsect1><title>Examples</title>
<screen>

OS9: cmp red blue

 Differences

byte      #1 #2
========  == ==
00000013  00 01
00000022  B0 B1
0000002A  9B AB
0000002B  3B 36
0000002C  6D 65

Bytes compared:   0000002D
Bytes different:  00000005

OS9: cmp red red

 Differences
   None ...

Bytes compared:   0000002D
Bytes different:  00000000
</screen>
</refsect1>
</refentry>