title: Downloading Android 5.1 Source
body: <p>I'm using Ubuntu 14.04 and i just followed each and every step in this <a href="https://source.android.com/source/initializing.html" rel="nofollow">link</a>. After installing jdk, Git, creating working directory, i want to download Android 5.1 latest revision of source .</p>
  
  <pre><code>$ repo init -u https://android.googlesource.com/platform/manifest -b  
  </code></pre>
  
  <p>what is the correct command to download 5.1. Can you tell me how much size of the source code is?</p>