If you have installed an Ubuntu app from a .deb package, you can uninstall it using apt and dpkg.
Find the package name
If you still have the .deb file:
1 | dpkg-deb -f your-app.deb Package |
For example:
1 | dpkg-deb -f code.deb Package |
It might return:
1 | code |
Tip: If you don’t have the .deb file, search your installed packages:
1 | dpkg -l | grep -i "app-name" |
For example, if you installed Visual Studio Code:
1 | dpkg -l | grep -i code |
You might see:
1 | ii code 1.134.0-1787078834 amd64 Code editing. Redefined. |
Uninstall it
Use:
1 | sudo apt remove package-name |
For example:
1 | sudo apt remove code |
This removes the application but generally keeps its configuration files.
Completely remove it
If you want to remove the package’s system-level configuration files:
1 | sudo apt purge package-name |
Then clean up unused dependencies:
1 | sudo apt autoremove |
It is generally recommended to use apt remove rather than manually deleting files. This properly removes the files registered by the .deb package.