title: correct way to start/stop postgres database pg_ctl or service postgres
body: <p>I would like to know correct way of starting/stopping postgres database.
  There are two ways</p>
  
  <ol>
  <li><code>pg_ctl start/stop</code></li>
  <li><code>service postgresql start/stop</code></li>
  </ol>
  
  <p>I would like to know how they are different from each other, which one should I use? are their any pros/cons.</p>
  
  <p>I check online but didnt get satisfactory answer.</p>
  
  <p>Thanks in advance</p>