I can use the search and replace in files function in notepad.
I wanna batch this.

if not possible i wanna use a script to do the same.

I already found a script for search and replace in the open file, but not for search and replace in files.

If that is not possible I can also use a script in a programming language that read from a premade file what to search and then replace in all files of a specific directory.

My personal problem is that I never learned to use a script outside a programm. I learned only programming in java and never how to use it in the field to make my own little scripts to do things for me.

If you have a good site recommentation to learn this or an already working code with a tutorial how to use it, I would be very thankful.