Okay, so I've searched everywhere and while I can find plenty of stuff about moving a Drupal install out of a subdirectory I can't find anything on moving one into a subdirectory. I've recently taken over this project and it was developed without me so I've been landed in it here.
The problem is that the site was developed in the root of a dev server and I now have someone who wants it in a subdir. I've changed the base url in the htaccess and I've tried manually changing references in the CSS and DB but I can't be sure I've caught everything (modules etc).
What I want to know is, is there a way to force every link relative to the root to be relative to root/example instead. Basically everything that was once at www.example.com is now at www.example.com/subdirectory.
Thanks.