Using Eclipse installer I erroneously installed it on /root directory (default path) using sudo to run eclipse-inst: 
As shown here: Not even a .desktop file was created. After learning about /root and how to install Eclipse I decided I want to uninstall it to do it properly. But if I shouldn't change /root permission, how can I safely remove eclipse?
Using
sudo apt-get autoremove eclipse returns
Package 'eclipse' is not installed, so not removed 1 Answer
I think you can use this thread to solve your issues but you need to remove purge not only eclipse but all related packages...
