title: Malformed entry 1 in list file
body: <p>I attempted to download VirtualBox from terminal. Now, when I try to update, or input a command this reads out:</p>
  
  <pre class="lang-sh prettyprint-override"><code>tyiese@penguin:~$ apt-get update
  E: Malformed entry 1 in list file /etc/apt/sources.list.d/virtualbox.list (Component)
  E: The list of sources could not be read.
  tyiese@penguin:~$ rm /etc/apt/sources.list.d/virtualbox.list
  rm: remove write-protected regular file '/etc/apt/sources.list.d/virtualbox.list'? Y
  rm: cannot remove '/etc/apt/sources.list.d/virtualbox.list': Permission denied
  </code></pre>
  
  <p>I did attempt to remove the file - I think - but, as you can see it was not accepted.</p>