using EARExpander

 http://publib.boulder.ibm.com/infocenter/wasinfo/v6r0/index.jsp?topic=/com.ibm.websphere.express.doc/info/exp/ae/rxml_earexpander.html

e.g.

/opt/WebSphere/AppServer/bin/EARExpander.sh -ear /opt/sampleUI.ear -operationDir /opt/WebSphere/wp_profile/installedApps/eli80/PA_wcm.portlet.design.ear/ -operation collapse