title: How to use file protocol to access a directory on local system?
body: <p>like <code>/usr/local</code>?</p>
  
  <p>I tried <code>file:///usr/local</code> but failed</p>
  
  <pre><code>[root@www2 robot]# cd file:///usr/local
  -bash: cd: file:///usr/local: No such file or directory
  </code></pre>