title: drop db in postgres
body: <p>I try <code>dropdb mydbname</code> in shell. It do not give any error. But still when I call <code>\l</code> it is still there. </p>
  
  <p>I logged into the postgres server using <code>sudo -u postgres psql</code>.</p>
  
  <p>Other than my main concern I need to know how to go into the database other than just staying outside of it. (as a example if I want to list the tables)</p>