Some time ago I installed a whole bunch of games on my computer (from the command line) so I could check out what sort of games are available for Linux. (Probably hundreds of games, in perhaps half a dozen software bundles.)
Now I'd like to do some cleanup. I'm also trying to stick to the GUI wherever possible in general, as I want to recommend Kubuntu to family members and friends, and would like to have an experience similar to what theirs will be and be able to answer their questions.
Going through and removing packages one by one from the "installed" tab works okay, but I have to type in my password every time. Worse, I have to wait until one package removal finishes before the next password prompt will pop up. (So I can't click "remove" for several packages and then walk away and let the computer finish.)
(As a side note, it doesn't seem possible to view the installed software by categories; only to view installed AND uninstalled software together by categories, or to view ALL installed software in one giant list. I would like to be wrong about that; please mention it if I am.)
How can I remove many applications via the GUI without having to type my password many times?
Synaptic Package Manager, which can be installed alongside another software center, allows the user to install/uninstall multiple packages with a single click. You don't need to authenticate with your user password to install/uninstall multiple packages except for once each time before launching Synaptic. To install Synaptic on all currently supported versions of Ubuntu/Kubuntu open the terminal and type:
Package search by section type in Synaptic
The Origin button in the left pane of Synaptic allows the user to search for packages filtered by their software source.