Rule to remove a character from url

Hello!
I'm trying to change the url of my page removing a point character (.) when it appear.
I think that the best solution is a rewrite but i can't find a correct rule.

For example:

http://www.hola.com/hola.que --> http://www.hola.com/holaque
http://www.hola.com/hola/hola.que --> http://www.hola.com/hola/holaque
http://www.hola.com/hola/hola2/hola.que --> http://www.hola.com/hola/hola2/holaque

Can somebody help me?

Thanks in advance.

Giu