title: Search and replace in MongoDB collection
body: <p>I have a mongo collection that contains a field called "url", storing an url.
  Some of those urls have an extra parameter that bothers me, "id=&lt;>" where &lt;> can have any size
  Can i do this in a update operation or do i need to write a script that will iterate and replace?</p>
  
  <pre><code>db.find({{"url": /.&amp;id=.*/ }}).update(???)
  </code></pre>