Lily screencast of a command line DOM explorer that let's you telnet (!) to your browser and traverse & interact with the HTML document using standard Unix commands. The (somewhat) supported commands are: ls, pwd, cd & rm - ls displays the child nodes of the current node, cd changes the current node to the node supplied as an argument (".." & "/" are supported), pwd displays the path back to the root node and rm deletes the supplied node. The screencast more or less documents what you can do with it.

More information available at lilyapp.org