title: Not able to remove a package completely in Ubuntu
body: <p>Tried removing mosquitto from Ubuntu, I probably forgot to stop the service/process. While mosquitto was removed (using apt-get remove and apt-get purge and autoremove etc), I can still access (run) mosquitto on command-prompt. </p>
  
  <p>When I try to remove it again, it says </p>
  
  <blockquote>
    <p>Package 'mosquitto' is not installed, so not removed</p>
  </blockquote>
  
  <p>I cannot wrap my head around how to remove something the package manager tells me is not present. There maybe some ghost files left behind, but still..? </p>