title: Check to see if cronjobs are executed
body: <p>I am running a cronjob every 15 minutes, and I want to be notified (preferably by email) whenever the job is NOT being run. That is, if cron is not running the job at all.</p>
  
  <p>I am aware that I can check log files manually, but I want this to be an automated check every time cron is supposed to execute a command. </p>
  
  <p>Does cron provide any ways of doing this, or do I need something else?</p>