title: createdb: too many command line arguments (first is template0)
body: <p>I am new to PostgreSQL and I was told to create a database with the following command:</p>
  
  <pre><code>createdb -U $USER --locale=en_US.utf-8 -E utf-8 -O $USER mangodb -T template0
  </code></pre>
  
  <p>But I get the error "createdb: too many command line arguments (first is template0)". What's wrong with this command?</p>