<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>