To completely remove or uninstall PostgreSQL database on Ubuntu 22.04, there are 2 easiest ways for that, firstly you can use the sudo apt-get remove --purge postgresql command on the terminal and secondly, you can do it by Ubuntu Software Center.
How to Uninstall PostgreSQL on Ubuntu 22.04
Here are two options to completely remove PostgreSQL on ubuntu 22.04:
Option 1: Remove PostgreSQL From Terminal
This is the first and easiest way to remove PostgreSQL from an Ubuntu system via terminal or command line using some snap and appropriate commands:
Step 1: Open Terminal
Press ctrl+alt+t on keyboard to start terminal window or command line.
Step 2: Uninstall PostgreSQL Snap Ubuntu 22.04
To run sudo snap remove PostgreSQL command on terminal window and press enter to completely remove PostgreSQL application from ubuntu 22.04 system:
sudo systemctl disable postgresql sudo apt-get remove --purge postgresql
Step 3: Remove Dependent Packages
To remove packages or dependencies related to PostgreSQL you need to run the clean or clear command on a terminal window:
sudo apt-get autoremove
Step 4: Verify Uninstallation
Now, you can type PostgreSQL on the terminal window and press Enter to verify the uninstallation:
PostgreSQL
Option 2: Remove PostgreSQL From Ubuntu software center
The second option is more easiest way to remove PostgreSQL from an Ubuntu system.
In just 4 steps, you can uninstall PostgreSQL in Ubuntu:
- Go to the Ubuntu software center
- Type PostgreSQL on the Search Bar for Find PostgreSQL DB
- Select PostgreSQL to Uninstall it
- Confirm uninstallation of PostgreSQL Database
If there is some reason why the PostgreSQL application is not being removed from your Ubuntu Linux server or system, and you have tried many times to get it removed, don’t worry, The simplest way to do this is to you just open your terminal window and type sudo rm -rf /etc/postgresql && sudo rm -rf /var/lib/postgresql command into it as a root user, it will completely delete the PostgreSQL application from your system:
sudo rm -rf /etc/postgresql sudo rm -rf /var/lib/postgresql
To install PostgreSQL on Ubuntu, you can reinstall it by following this guide: How to install latest postgreSQL on ubuntu 22.04.
Conclusion
That’s it; you have learned two ways on how to completely remove or uninstall postgresql application on ubuntu 22.04 linux server.
