title: PM2 deleted process runs on startup
body: <p>I have a pm2 process named <code>app</code> that was used to test the configuration.</p>
  
  <p>I noticed <code>app</code> was starting when the system rebooted, and it was causing errors with the real application.</p>
  
  <p>I ran:</p>
  
  <pre><code> pm2 delete app
  </code></pre>
  
  <p>then I ran:</p>
  
  <pre><code> pm2 list
  </code></pre>
  
  <p>and it didn't show <code>app</code>.</p>
  
  <p>When I reboot my system, the app is still there and it is running. I attempted to find information on where the config file is online, and there is no information other than creating a template config file. Where should the config file that pm2 reads on startup be located on an Ubuntu system, or why isn't delete working as I intend? Is there another method or command I can use to remove a pm2 process or am I looking at this incorrectly? </p>