title: How can I create command autocompletion for Fabric?
body: <p>I created a fabric file that contain several commands from short to long and complex. I need to have an autocomplete feature so that when user type <code>fab[tab][tab]</code> then all available fab commands are shown, just like we have in bash.
  i.e.<br></p>
  
  <pre>user@someone-ubuntu:~/path/to/fabfile$ fab[tab][tab]
  command1 command2 command3 ..and so on
  </pre>
  
  <p>How can I do this ?</p>