ubuntu 21.04 how to delete / remove postgresql (psql) & pgadmin4

ubuntu 21.04 delete / remove postgres (psql) & pgadmin4 $ psql -V $ sudo apt --purge remove postgresql -y $ dpkg -l|grep postgres $ sudo apt-get --purge remove postgresql postgresql-13 postgresql-client-13 postgresql-client-common postgresql-common $ sudo rm -rf /var/lib/postgresql/ $ sudo rm -rf /var/log/postgresql/ $ sudo rm -rf /etc/postgresql/ $ sudo apt autoremove pgadmin4