I installed Eclipse via command apt-get install eclipse. this command completed correct. After this I run eclipse add some configurations: Added new url for "Available Software Sites". On the next step I try removed Eclipse via apt-get remove eclipse. and install eclipse again. And here I see surprise: in new installed eclipse I see my old url for "Available Software Sites". So, I guess, that configuration files not removed! After this I tried different commands: something like this: sudo dpkg -r eclipse sudo apt-get --purge remove eclipse sudo apt-get autoremove but after I again install Eclipse I see my Url. So, How I can fully remove eclipse with configuration files???