Xcode is Apple‘s integrated development environment for Mac OS X, and resembles a cross between the old NeXT Interface Builder and the even more ancient MPW.

End the Xcode 4.3 Madness

Since Apple decided to move all useful command-line binaries inside the app bundle, you need to add the following to your .bashrc:

export PATH=$PATH:/Applications/Xcode.app/Contents/Developer/usr/bin