title: accessing bash arguments and commands
body: <p>There is plenty of info out ther about accessing <code>-a</code> type arguments
  But I want to create a script with usage like so, Actually I have already writin the help text</p>
  
  <pre><code>usage: pubkeys command options
  
  This script mannages your public keys.
  
  Commands:
          add - Add public key(s) to your authorized_keys file
          get - Echo public key(s)
          remove - Remove public key(s) from your authorized_keys file
  
  OPTIONS:
     -h   Show this help message
     -u   specify user, default is current user
     -v   Display Version and exit
  </code></pre>
  
  <p>How can I access the "Command" and only then parse the options?</p>