title: What exactly is sudo bang bang?
body: <p>What is the purpose of sudo bang bang (<code>sudo !!</code>) and when might one need to use it?</p>
  
  <p><a href="http://justinsomnia.org/2006/09/sudo-bang-bang/" rel="noreferrer"><img src="https://i.stack.imgur.com/JTMlx.png" alt="make me a sandwich, sudo bang bang"></a></p>