title: Vim: NERD_tree Plugin. Need help understanding a bloggers .vimrc addition to streamline this plugin
body: <p>So I'm basically a beginner when it comes to Vim, nonetheless I do know the basic things (open files, edit, move around, basic grep, .vimrc, etc)</p>
  
  <p>I would submit this link first</p>
  
  <p><a href="http://weblog.jamisbuck.org/2008/11/17/vim-follow-up" rel="nofollow noreferrer">http://weblog.jamisbuck.org/2008/11/17/vim-follow-up</a></p>
  
  <p>If you scroll down to where it says "NERD___tree", it explains what it is and gives a link to the home page. I have already gotten NERD_tree installed, so far so good.</p>
  
  <p>Only thing is, this guy (JamisBuck) adds a line to the .vimrc file to streamline it's usage (I'm guessing to toggle between NERD_tree and the actual file, because as far as I can tell, there is no quick way to do it other than typing in:</p>
  
  <pre><code>:NERDTree
  </code></pre>
  
  <p>Every time which is less than desirable. The follwing is the code he adds to the .vimrc file:</p>
  
  <pre><code>map &lt;leader&gt;d :execute 'NERDTreeToggle ' . getcwd()&lt;CR&gt;
  </code></pre>
  
  <p>He doesn't explain exactly what is is and/or how to use it, so If someone could give me a short explanation and/or point me towards a resource to learn more about this, that would be appreciated.</p>