title: How to grep information?
body: <p>What I have:</p>
  
  <pre><code>test
  more text
  @user653434 text and so
  
  
  test
  more text
  @user9659333 text and so
  </code></pre>
  
  <p>I'd like to filter this text and finally get the following list as .txt file:</p>
  
  <pre><code>user653434
  user9659333
  </code></pre>
  
  <p>It's important to get the names without "@" sign.
  Thx for help ;)</p>