One great thing about running Windows is TortoiseSVN. I makes managing my SVN so easy. One of the problems I’ve ran into on other systems was I had been working for several hours. I would have dozens of new files and with TortoiseSVN it would show me a list of all the new files and I could hit “select all” and commit. However, on Mac I haven’t found an SVN client that I like, so I just use the terminal commands. There are also times, like when managing a WordPress installation, that WordPress and its plug-ins could auto update. I wanted to be able to add all the new files on the linux server back into the svn.
I never could figure out how to do it until I read a comment at a blog post:
svn st --ignore-externals | grep ^? | sed 's/?/svn add/' | sh
Man, shell is just awesome. This is better than the first suggestion of using “svn add –force *” because it would add ignored files as well. Hope this helps someone and makes them happy like I am now!
Justin Carmony 
Try smartSVN, this allows to select the unversioned files (of course, from subdirectories, too) and invoke add.
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