Hey,
You can use this example so that you can understand how it works:
$ oozie job -oozie http://localhost:11000/oozie -definition 14-20090525161321-oozie-joe
.
<workflow-app xmlns="uri:oozie:workflow:0.2" name="sm3-segment-2413">
	<start to="p0"/>
    <action name="p0">
    </action>
	<end name="end"/>
</workflow-app>