lfs-book/appendixa/grep-desc.xml

<sect2>
<title>Contents</title>

<para>The grep package contains the egrep, fgrep and grep programs.</para>

</sect2>

<sect2><title>Description</title>

<sect3><title>egrep</title>

<para>egrep prints lines from files matching an extended regular expression
pattern.</para>

</sect3>

<sect3><title>fgrep</title>

<para>fgrep prints lines from files matching a list of fixed strings,
separated by newlines, any of which is to be matched.</para>

</sect3>

<sect3><title>grep</title>

<para>grep prints lines from files matching a basic regular expression
pattern.</para>

</sect3>

</sect2>