psql set password code example

Example 1: setup password psql

sudo -u postgres psql postgres
\password postgres
\q

Example 2: set username and password for postgresql database

sudo -u postgres psql -c "ALTER USER postgres PASSWORD 'postgres';"

Example 3: create password for user in postgres

ALTER USER davide WITH PASSWORD 'hu8jmn3';

Example 4: reset password postgres ubuntu

\password sde