title: Get list of not-existing files after Git checkout
body: <p>How can I know which files are not existing in a comparision between two branches?</p>
  
  <p>For example, if I have the master branch with:</p>
  
  <pre><code>a.md
  b.txt
  </code></pre>
  
  <p>and a <code>dev</code> branch with:</p>
  
  <pre><code>a.md
  </code></pre>
  
  <p>How can I get a list with:</p>
  
  <pre><code>b.txt
  </code></pre>
  
  <p>as deleted file?</p>
  
  <p>I know the existence of <code>git diff --name-status branch..dev</code> but it lists every changed file.</p>