title: Perl Regex "Not" (negative lookahead)
body: <p>I'm not terribly certain what the correct wording for this type of regex would be, but basically what I'm trying to do is match any string that starts with "/" but is not followed by "bob/", as an example.</p>
  
  <p>So these would match:</p>
  
  <pre><code>/tom/
  /tim/
  /steve
  </code></pre>
  
  <p>But these would not</p>
  
  <pre><code>tom
  tim
  /bob/
  </code></pre>
  
  <p>I'm sure the answer is terribly simple, but I had a difficult time searching for "regex not" anywhere. I'm sure there is a fancier word for what I want that would pull good results, but I'm not sure what it would be.</p>
  
  <p>Edit: I've changed the title to indicate the correct name for what I was looking for</p>