app icon still showing after purge/uninstall

Question

Menu bar:

I have purged the KDE plasma desktop and uninstalled ozeki SDK. but those are still showing in the app menu. how I can remove those. i have attached the photo.

Answer 1

Any icon you see in the application launcher is represented by a desktop launcher file in specific directories. That are specifically formatted text files with the .desktop extension. Removing such launcher will remove the icon from the menu.

Normally, removal of an application installed via APT or snap or flatpak will also remove the system installed desktop launcher. If an application launcher remains in the application menu, then it would not be displayed in the menu if the command to execute it has become invalid. This command is provided on the Exec= line in the launcher.

Thus, if I see and the launcher and specific icons for them, then my first impression is that your application is not removed, or not completely removed.

Apart from the question whether the app is removed or not, you can manually remove the icons in the application menu by locating the desktop launcher files and deleting them. The command

find / -name '*.desktop' -exec grep -H "Name=Ozeki" {} \; 2>/dev/null

will list any desktop launcher that displays a label starting with "Ozeki" in your menu.

In your case, also icons have been left behind. You can identify the name of the icons by looking at the Icon= line in the desktop launchers, and then find and delete the icon files if you wish so.