title: mongo dbname --eval 'db.collection.find()' does not work
body: <p>Why does this work:</p>
  
  <pre><code># mongo dbname
  MongoDB shell version: 1.8.3
  connecting to: nextmuni_staging
  &gt; db.collection.find()
  { "foo" : "bar" }
  &gt; bye
  </code></pre>
  
  <p>While this does not work:</p>
  
  <pre><code># mongo localhost/dbname --eval 'db.collection.find()'
  MongoDB shell version: 1.8.3
  connecting to: localhost/dbname
  DBQuery: dbname.collection -&gt; undefined
  </code></pre>
  
  <p>It should be exactly the same, no?</p>
  
  <p>Thanks!</p>