how to set password in postgresql code example

Example 1: setup password psql

sudo -u postgres psql postgres
\password postgres
\q

Example 2: how to connect postgres user password using command line

sudo -u postgres psql postgres

Example 3: create password for user in postgres

ALTER USER davide WITH PASSWORD 'hu8jmn3';

Example 4: how to connect postgres user password using command line

\password postgres