title: install all grunt devDependencies using one command
body: <p>I just setup my Gruntfile.js file and loads all(9) devDependencies. To install these devDependencies, I used following command</p>
  
  <pre><code>npm install name-of-plugin --save-dev
  </code></pre>
  
  <p>I used above command 9 times for each dependency. Now what I want is to install all these dependency using one command something like <code>grunt install plugins</code> or something else command. That command will read devDependencies from package.json file and install it for me.</p>
  
  <p><strong>Is this possible? If yes then how can I achieve this?</strong></p>