<!DOCTYPE cmdsynopsis PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN"
          "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd">
<cmdsynopsis>
  <command>cal</command>
  <arg>-j</arg>
  <arg>-y</arg>
  <arg>month <arg>year</arg></arg>
</cmdsynopsis>