title: Keybindings with ZSH
body: <p>Can anyone tell me how to move back a word in ZSH? <kbd>Ctrl</kbd>+<kbd>b</kbd> will move back a character but not an entire word.</p>
  
  <p>For instance a log command like this:</p>
  
  <pre><code>knife zero bootstrap mbigglesworth@10.10.1.108 --sudo-preserve-home --ssh-user mbigglesworth --sudo --policy-name linux_mint_wkstn -N linuxmint-vm -VV
  </code></pre>
  
  <p>...is painful to get to the middle of!</p>