Been searching everywhere on this forum for a way to remove apps from the apps menus that did not uninstall properly. Specifically Bomberman for N810.

Downloaded/installed easyroot and typed root...
I'm familiar with dos commands, but new to linux/unix/xterm.

1. I see the cd command, but how do i find, remove or edit a file or folder? Is there a dir command?
2. Any good online references on how to navigate xterm for dummies?
3. Why can't this be done in an app like File Manager?

Any help?
Thanks