Uninstall Postgresql & PgAdmin4 in Ubuntu 18.04.4 LTS

I am going straight forward with commands you need to run in your terminal.

How to remove postgresql from Ubuntu 18.04.4 LTS:
1.root@vipul-ThinkPad-T440:/# sudo apt-get — purge remove postgresql
2.root@vipul-ThinkPad-T440:/# dpkg -l|grep postgres
3.root@vipul-ThinkPad-T440:/# sudo apt-get — purge remove pgdg-keyring postgresql*
4.root@vipul-ThinkPad-T440:/# sudo rm -rf /var/log/postgresql/
5.root@vipul-ThinkPad-T440:/# sudo rm -rf /var/lib/postgresql/
6.root@vipul-ThinkPad-T440:/# sudo rm -rf /etc/postgresql/
7.root@vipul-ThinkPad-T440:/# sudo deluser postgres
8.root@vipul-ThinkPad-T440:/# sudo delgroup postgres

How to remove pgAdmin 4 from Ubuntu 18.04.4 LTS
1.sudo apt autoremove pgadmin4