[chriswarbo]

XPath is great, and works equally well in lumbering, ceremony-heavy Enterprise Java environments; and in quick bash one-liners.

I use it in a bunch scraping scripts for Web sites which don't provide RSS feeds. It's really nice for quickly 'exploring' a document to find the needed data; it's simple to update when sites change their layout; and it can be read in from a config file, argument, env var, etc. to keep things generic and flexible.