title: what's the difference between "npm install" and "npm --userconfig=./.npmrccorp i "
body: <p>I want to know what the difference is between these two commands in nodejs
  <code>npm install</code>     and,
  <code>npm --userconfig=./.npmrccorp i</code></p>
  <p>As far as I know, both will install the required node modules specified in the <code>package.json</code>.</p>