code: function() {
    var command = ARGV.args.shift();
  
    if (commands[command]) {
      return commands[command]();
    }
  
    /* otherwise -- unknown command */
    console.error("Unknown command, known commands: ", _.keys(commands));
  }
docs: ------------------------------------------------------------------------------------- Functions  
  This is the main function that gets invoked if the user runs the `ra` command.
  
  It simply looks up the requested function in its `commands` object, and calls it.