title: Exclude specific name in regex
body: <p>I have multiple directories with names like <code>app1.6.11</code>, <code>app1.7.12</code>, <code>app1.8.34</code>, <code>test1</code>, <code>test2</code>.</p>
  
  <p>I want to match regex for all the directories which start with <code>app</code> and to exclude <code>app1.8.34</code>.</p>
  
  <p>I have tried:</p>
  
  <pre><code>^(app.+)[^(app1.8.34)]
  </code></pre>