Postgres Standardbenutzer
# Default user is postgres with no password
# To change user use:
sudo -u postgres
# To connect to database use:
psql mydatabase
Classy Answer
# Default user is postgres with no password
# To change user use:
sudo -u postgres
# To connect to database use:
psql mydatabase$ sudo -u postgres psql
# in the terminal
set PGUSER=ExampleUser