title: how to install express js on ubuntu?
body: <p>I am using ubuntu 14.04 LTS.</p>
  
  <p>I installed nodejs as mentioned <a href="http://slopjong.de/2012/10/31/how-to-install-the-latest-nodejs-in-ubuntu/" rel="nofollow">here</a>, and then I installed express by running <code>sudo npm install -g express@3</code>  it got installed but when I try to create an app or even try to look at the version by running <code>express -v</code> or <code>express -V</code> it doesn't give any sort of output. </p>
  
  <p>Any help is much appreciated, Thanks in advance!</p>