title: Replace a Date with a UNIX Timestam while leaving the rest of the line as it is
body: <p>I've got a Line like this</p>
  
  <blockquote>
    <p>copy to somewhere from somewhere at Wed 13 Apr 10:18:25 CEST 2016 filesize ...</p>
  </blockquote>
  
  <p>I want to transform the Date into a Unix Timestamp. While the rest of the line remains the same. I want to do this for the complete file. The only way I can imagine is extracting the date transforming it and create a new File and fill in the Timestamp.</p>