title: Special RegEx Patterns
body: <p>I am trying to search for a specific pattern using regex, but I am having a difficult time. I have over 4,000 images, named as three different file sets, named like so...</p>
  
  <ul>
  <li>0001234_name-of-file.jpeg</li>
  <li>0001235_name-of-file_100.jpeg</li>
  <li>0001236_name-of-file_200.jpeg</li>
  </ul>
  
  <p>What I want to do is JUST search for the files like 0001234_name-of-file.jpeg</p>
  
  <p>I do NOT want any of the files that have the _100 or _200 at the end before the extension.</p>