How get rid of these applications

Solution 1:

If these are applications in your application menu, then these entries are associated with a .desktop launcher, a plain text file formatted in a specific way to instruct the operating system on how to launch applications.

Find one with the command:

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

Open one of the found files with a text editor. On the line Exec=, you will see the executable associated with the menu entry. That will allow you to identify the program.

In order to find out what package installed the executable, use

dpkg -S /path/to/executable

Once identified, you can remove the package.