title: Picking a random word with an specific number of letters in bash
body: <p>I need to pick a random word with <code>n</code> letters, <code>n</code> will be the parameter.</p>
  
  <p>I have this:</p>
  
  <pre><code>#!bin/bash
  shuf -n1 /usr/share/dict/words
  </code></pre>
  
  <p>So I know how to pick a random word but not with a specific number of letters.</p>