regex to remove everything after the last dot in a file

Question

I'm trying to find a regex for removing everything after the last dot in a file. So far I've found ways to remove all text before the first dot, but I can't seem to find a way to select the end of the file. Could you help me on the way?

Thanks in advance

Answer 1

You can try something like:

.[^.]*$

to match everything including and after the last dot. If you don't want to include the last dot, then you can use a positive lookbehind:

(?<=.)[^.]*$