title: How to restart Postgresql
body: <p>I have PostgreSQL <code>9.3</code> and <code>9.4</code> installed on my <em><strong>Linux Mint</strong></em> machine.</p>
  <p><em><strong>How can I restart PostgreSQL 9.4?</strong></em></p>
  <p>A method to restart both versions together is also fine.</p>