Automatically batch rename photo files
Following Robert Seale’s advice, I was looking for a solution to batch rename photo files. After my last shoot I used digikam and while the results were as desired, it took a second or more per image, which I thought a bit long. After not finding a different suitable solution I asked the question on unix.stackexchange and was overwhelmed by two people’s in-depth answers. I learned a lot from both mikserv and Gilles and in the end settled with Gilles’ suggestion. I take zero credit for the solution, I don’t even understand parts of what is going on, but I amended it a little bit nonetheless and thought the extended version might help someone.*
Preliminaries
What I get when I come home is file names looking like this: _DSC1234.NEF. What I wanted instead was