Answered by : you

dpkg -l | grep postgres

Source : | Last Update : Mon, 18 Sep 23

Answered by : vedant-bothikar

> which psql
check if you get any o/p
if you get o/p => postgresql is installed!

Source : https://stackoverflow.com/questions/5803262/how-can-i-check-if-postgresql-is-installed-or-not-via-linux-script | Last Update : Thu, 28 Jul 22

Answered by : amanuel-getachew

sudo service postgresql status

Source : https://chat.openai.com/?model=text-davinci-002-render-sha | Last Update : Mon, 07 Aug 23