title: git pull for a local repository at specified location (instead of pwd)
body: <p><code>pwd</code> is "present working directory". Here's the situation. </p>
  
  <pre><code>pwd:            /path/to/pwd/
  git repository: /repo/path/.git/
  </code></pre>
  
  <p>I want to do a git pull from origin, but without changing my current directory.</p>
  
  <p>To clarify just a little more in case I'm not clear enough, this is the result I want, but I want to do it with one command instead of having to change directories:</p>
  
  <pre><code>$ cd /repo/path
  $ git pull origin master
  $ cd -
  </code></pre>