title: how to get configuration parameter into a command
body: <p>I'm trying to get a configuration parameter into a command.</p>
  <p>I have added the parameter in the <code>app/config/config.yml</code> under the <code>parameters</code> key.</p>
  <p>I can use it in a Controller using <code>$this-&gt;getParameter(&quot;PRAMETER_NAME&quot;)</code> in an action to do some stuff manually.</p>
  <p>I'm writing a command to do the same stuff automatically with a CRON job.</p>
  <p>I can't find how to get the parameter in the command.</p>