title: How can I use xcodebuild in command line?
body: <p>I'm a newbie to xcode. 
  I'm using xcode 4.3 with lion. I want to use xcodebuild in command line, but it report "no such file". I searched it with Finder, but no result.</p>
  
  <p>What is this file's path? Does it exist in the Xcode.app? 
  Can I search files in a .app package?</p>
  
  <p>Additional info:
  When I typed "which xcodebuild", it return /usr/bin/xcodebuild. Enter this folder, and type xocdebuild, it still return Error: </p>
  
  <pre><code>Can't run /Applications/usr/bin/xcodebuild (no such file).
  </code></pre>