title: Echoing a backspace
body: <p>Is it possible to echo a backspace in bash?</p>
  
  <p>Something like</p>
  
  <pre><code>echo $'stack\b'
  </code></pre>
  
  <p>Shouldn't output <code>stac</code>? Or I'm missing something?</p>
  
  <p>More specifically, I'd like to use that in:</p>
  
  <pre><code>ls | wc -l; echo $'\b items'
  </code></pre>