Hi Dissident
usually if something has an installer, it also has an uninstaller. Though this is not *always* the case. As mentioned above, it depends on the type of package -- is it a .tgz, or a .deb, or an .rpm, or anything installed using a package-manager> Then the installer will usually remove it too, often by running the install command with
--uninstall or
--remove instead of
--install.
There are tools such as 'checkinstall' which (in some cases) can log the installation of packages to allow you to easily remove them later.
Finally, if none of the above is available, one must track down the binaries and scripts created by a package, and manually remove them. The larger and more complex the package, the more difficult this can be. One way to figure out what got installed, is to run the installer from a console window, where you can see all the locations where the installer put files. This makes it easier to go there and delete them.