title: how to uninstall Xcode (do not have /Developer folder or "Install Xcode" app)
body: <p>this is a strange question. I search for a while but no luck. I have installed Xcode on lion previously; however I delete the "Install Xcode" after the installation. Now when I use commands like "g++" and "make", which should be supported by Xcode, terminal says "command not found". Also, there is no Developer folder at my home path; all I have is a Xcode app in my Application folder. But I could open it and also compile c program in it.</p>
  
  <p>I am confusing about this situation now, so I decide to uninstall and reinstall Xcode. However  I cannot directly drag the Xcode app to trash. Is there a way to get this back to the right track? I need to use those command line tools.</p>
  
  <p>Thank you.</p>