title: sudo: stop: command not found
body: <p>I'm running a shiny app on an amazon web services instance using shiny-server. I wanted to stop the shiny-server in order to set up password protection but when I was following a protocol that said to type <code>sudo stop shiny-server</code> I got this error sudo: stop: command not found.</p>
  
  <p>I tried to look into it and tried to install <code>sudo apt-get install upstart-sysv</code> but now my error is stop: Unable to connect to Upstart: Failed to connect to socket /com/ubuntu/upstart: Connection refused.</p>
  
  <p>the aws instance is ubuntu 16.04, any help is appreciated</p>