Recently I had to rename maybe 20–30 files where I had to extract some fields from the file name, and then modify the numbers, like add 2000 to the number from the file, and change a few things in the file names. I gave a few apps a try, but I was not happy with how they were designed. A lot of buttons, a lot of options, a lot of configurations - it felt like the time I would spend learning how to use those apps would be similar to just writing a bash script in the end.
