I have more older versions of NetBeans installed on my system and I would like to uninstall them.

The problem is that I have installed them all from a .sh shell installer script simply running from cmd and none of Synaptics, apt, dpkg nor Software center knows about any NetBeans installation.

I know I could probably run the installer again and select the Uninstall/Remove option but I have already deleted all of the installers long time ago and downloading them again just to be able to uninstall current installations is not a solution for me.

Is it possible to just delete the local files (since none of the packaging software knows about them) and consider this operation as uninstall? Or is there some better option?