Create a Superuser in postgres

Solved with:

sudo -u postgres createuser -s -i -d -r -l -w <<username>>
sudo -u postgres psql -c "ALTER ROLE <<username>> WITH PASSWORD '<<password>>';"

I know is not an elegant solution, but for now it'll do ð

Do it in a single statement within psql:

CREATE ROLE username WITH LOGIN SUPERUSER PASSWORD 'password';

e.g

CREATE ROLE dummy WITH LOGIN SUPERUSER PASSWORD '123456';

For PostgreSQL versions 8.1 and newer

To create a superuser:

CREATE USER username SUPERUSER;

If you need to specify the password:

CREATE USER username WITH SUPERUSER PASSWORD 'passwordstring';

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