如何卸载xcode3

I recently bought Xcode 4 on the Mac AppStore and thereby thought I’d upgrade. Nope. Xcode 3 is moved to ‘/Developer-old’, but kept. No big dead actually, except when your OS Disk is only 60Gb  The new Xcode 4 uses almost 10Gb plust 5Gb for Xcode 3. So if you don’t need Xcode 3 anymore, just run:


sudo /Developer-old/Library/uninstall-devtools --mode=all


This removes all Xcode3 files, freeing up about 5Gb of space.


reference：http://www.chrisk.de/blog/2011/03/how-to-upgrade-to-xcode-4-or-uninstall-xcode-3/