Mass rename of jpeg files

I have hundreds of jpeg files in "My Document" folder that needs to be renamed from something like
to something like that
How can I do that automatically for all sub folders bellow
The prefix can be any length. What is constant is the first occurence of the _ underscore

i believe you will find your answer in this post - scroll down and you will see a regex rename to remove everything up to and including the first underscore in a filename.

just flatten the directory and select all .jpg files, or do a search so that all .jpg files end up in a file container, and run the regex from there.

garbanzo, thank you much, it works like magic. :bulb: