title: Postgres database setup on Cloud9 asks for sudo password
body: <p>So I'm using the <a href="http://c9.io">Cloud9 ide</a> to collaborate on a Node.js project. We are using Postgresql for the database, and <a href="https://docs.c9.io/setting_up_postgresql.html">the documentation for Postgres</a> seems to make it quite simple. I can <code>sudo service postgresql start</code> without a problem but I can't <code>sudo -u postgres psql</code> without it asking for my password, which I don't know because Cloud9 set up the environment for me. Any fixes or suggestions?</p>