DO NOT try to compare file names in two folders to find differences between their contents, worst mistake of my life
getting mad at diff for not working how I want it to work so I jerry rigged some unbelievably ugly bullshit together that just tells me what files I need to copy. I could make it funnier and write something to just copy the files for me if I was insane enough (it would not be hard to do this at all tbh lmao). People who are good at computers DNI I know this looks like shit:
for f in /home/alastargr/Music/mp3/*.mp3; do if ! test -f "/run/media/alastargr/0000-006F/music/$(basename "$f")"; then echo "$(basename "$f")"; fi; done
also no, I will not learn how diff works btw I think this is funnier (I am kidding).
update: i made it copy the files too because I am lazy and it's less work :3