title: Cron Scheduling bad username
body: <p>My crontab isn't running. After checking the syslog I am getting the following errors:</p>
  
  <pre><code>Dec  7 18:57:01 raspberrypi cron[334]: Error: bad username; while reading /etc/cron.d/crontab
  Dec  7 18:57:01 raspberrypi cron[334]: (*system*crontab) ERROR (Syntax error, this crontab file will be ignored)
  </code></pre>
  
  <p>I'm trying to schedule a cron task, and it keeps giving me a bad username error... i've tried both:</p>
  
  <pre><code>57 13 * * * pi /home/pi/Desktop/shell.sh
  </code></pre>
  
  <p>and</p>
  
  <pre><code>57 13 * * * root /home/pi/Desktop/shell.sh
  </code></pre>
  
  <p>and they're both coming back invalid, what am i missing?</p>