characters in their names?
You can try to find a pattern that uniquely identifies the file. This sometimes fails because a peculiarity of some shells is that they strip off the highorder bit of characters in command lines. Next, you can try an rm -i, or rm -r. Finally, you can mess around with i-node numbers and “find”. Some Emacs editors allow you to directly edit a directory, and this provides yet another way to remove a file with a funny name (assuming you have Emacs and figure out how to use it!).