title: Why after "npm install express" there is no package.json in my directory?
body: <p>I am using latest version of nodejs, 0.10.24</p>
  
  <p>I followed this tutorial: <a href="http://net.tutsplus.com/tutorials/javascript-ajax/how-to-scrape-web-pages-with-node-js-and-jquery/" rel="nofollow">http://net.tutsplus.com/tutorials/javascript-ajax/how-to-scrape-web-pages-with-node-js-and-jquery/</a></p>
  
  <p>after installing <code>npm install express</code>, I can't find the <code>package.json</code> file in the same directory.</p>
  
  <p>But when I tried this on Windows a few months before, I noticed that there was a file in the same directory.</p>
  
  <p>Is there anything I need to do to fix?</p>
  
  <p>Thanks,</p>