title: Creating a new collection from results of a mongodb query
body: <p>I'm trying to create a new collection using the results of a mongodb query. For example,</p>
  
  <pre class="lang-js prettyprint-override"><code>db.coll.find({name:'abcd'}) 
  </code></pre>
  
  <p>will return a subset of the collection. Now, I want to insert this result into a new collection. How can I do this?</p>