2 <!DOCTYPE para PUBLIC
"-//OASIS//DTD DocBook XML V4.1.2//EN" "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd">
4 The
<option>-a
</option> option on the
<acronym>UNIX
</acronym><command>ls
</command> command or the
<option>/r
</option> option on the
5 <acronym>DOS
</acronym><command>attrib
</command>