If you want to install Xcode and the Command Line Tools you can just install Xcode from the AppStore. Installing Xcode on MaxOSX Mavericks (10.9) Look for the 'Command Line Tools' line click the associated 'Install' button, wait for the install to perform, then you're done.Installing Xcode on MaxOSX Lion and Mountain Lion (10.7 and 10.8) Xcode is typically installed into the /Developer directory.When Installing Xcode, keep the 'UNIX Development Support' checked - it will enable you to use command-line tools.NB: Download the latest Xcode which will work on your Mac OS X version. You can download the latest version of Xcode from the AppStore, earlier versions are also available at (click the link Additional Tools, requires free ADC membership).4 Installing Xcode on MaxOSX Mavericks (10.9).3 Installing Xcode on MaxOSX Lion and Mountain Lion (10.7 and 10.8).