How to find all entries in SVN repo with an external to a given URL [duplicate]

Question

Possible Duplicate:
List all svn:externals recursively?

I need to move the location of a component that is referenced by many projects with an svn:external.

How can I easily find all locations that have an svn:external to this URI?

Answer 1

 svn propget svn:externals http://path/to/repos -R

lists all externals, its not filtered, suppose i could grep it if i was on a decent OS.