If I have a working copy of a Subversion repository, is there a way to delete all unversioned or ignored files in that working copy with a single command or tool? Essential
you can't delete them with just SVN command line (not sure about GUI tools though) if you are under linux system this might help:
http://www.guyrutenberg.com/2008/01/18/delete-unversioned-files-under-svn/
The other (brutal) method is to commit changes, delete all from folder and checkout again.