Delete recursively the .svn directories

$ rm -rf `find . -type d -name .svn`

Find files not under version control

$ svn status | grep -e '^?'

How to remove all deleted files from the repository

$ svn st | grep '^!' | awk '{print $2}' | xargs svn delete --force

grep in a folder, excluding .svn dirs

$ grep -r 'content_graphic' assets/js --exclude-dir=.svn