xpup is pup for XML.
It uses xpath rather than css selectors.
go get github.com/ericchiang/xpup
Binary installs coming soon.
$ curl -s http://www.xmlfiles.com/examples/note.xml
<?xml version="1.0" encoding="ISO8859-1" ?>
<note>
<to>Tove</to>
<from>Jani</from>
<heading>Reminder</heading>
<body>Don't forget me this weekend!</body>
</note>
$ curl -s http://www.xmlfiles.com/examples/note.xml | xpup '/*/body'
Don't forget me this weekend!