Getting a new account set up on PostgreSQL is a simple process…

Create our new user:

$ sudo su postgres -c createuser daz

Then you have to give this new user role a name (I called it daz), and then say ‘y’ to the question “Shall the new role be a superuser?” if you want the user to be an administrator.

Give the user a database password (this does not have to be the same as their unix password):

$ sudo su postgres -c psql
postgres=# ALTER USER daz WITH PASSWORD 'mypassword';
postgres=# \q

Finally, give the new user a database to play with:

$ sudo su postgres -c createdb daz