title: vim nerdtree vs "E:" explorer?
body: <p>I am new to VIM.
  Please help me with this - or please give me a link, thank you! I found the Nerdtree very useful. i also found an article about using the command ":E", which gives a similar (or the same) look as the Nerdtree shows.</p>
  
  <p>May I ask, which one to use (Nerdtree-plugin or :E)? Are there functionalities that Nerdtree shows while not :E?</p>
  
  <p>Thank you and please sorry if that's really basic; i can't find a comparison if it in the web; and as a 'newbie' i do not see the difference (yet).</p>