title: dotenv file is not loading environment variables
body: <p>I have .env file at <em>root folder</em> file </p>
  
  <pre><code>NODE_ENV=development
  NODE_HOST=localhost
  NODE_PORT=4000
  NODE_HTTPS=false
  DB_HOST=localhost
  DB_USERNAME=user
  DB_PASSWORD=user
  </code></pre>
  
  <p>And <code>server.js</code> file in the <code>root/app/config/server.js</code> folder. 
  The first line of <code>server.js</code> file is </p>
  
  <p><code>require('dotenv').config();</code></p>
  
  <p>I also tried following: </p>
  
  <p><code>require('dotenv').config({path: '../.env'})</code>;</p>
  
  <p><code>require('dotenv').config({path: '../../.env'})</code>;</p>
  
  <p><em>However, my env variable are not loaded when I run the <code>server.js</code> file 
  from <strong>command prompt</strong></em></p>
  
  <p><code>node root/app/config/server.js</code></p>
  
  <p>If I use the <em>visual studio</em> and press <em>F5</em>, it loads!!</p>
  
  <p>I'm not sure what I'm doing wrong, what I'm missing.
  Any suggestion is highly appreciate. Thanks.</p>