lfs-book-zh_CN/appendixa/diffutils-desc.sgml

<sect2>
<title>Contents</title>

<para>
The Diffutils package contains the cmp, diff, diff3 and sdiff programs.
</para>

</sect2>

<sect2><title>Description</title>

<sect3><title>cmp and diff</title>

<para>
cmp and diff both compare two files and report their differences. Both
programs have extra options which compare files in different situations.
</para

</sect3>

<sect3><title>diff3</title>

<para>
The difference between diff and diff3 is that diff comprares 2 files,
diff3 compares 3 files.
</para>

</sect3>

<sect3><title>sdiff</title>

<para>
sdiff merges two files and interactively outputs the results.
</para>

</sect3>

</sect2>