Run commands recursively in Linux… here is a solution to the problem.
Run commands recursively in Linux
I’m trying to come up with a command that can run mp3gain FOLDER/SUBFOLDER/*.mp3 in every subfolder, but I can’t understand why this command doesn’t work:
find . -type d -exec mp3gain \"{}\"/*.mp3 \;
When running, I get the error Can't open "./FOLDER/SUBFOLDER"/*.mp3 for reading for each folder and subfolder
IF I MANUALLY RUN THE COMMAND WITH MP3GAIN "./FOLDER/SUBFOLDER"/*.mp3, it works. What went wrong?
Solution
If you have a fixed data structure, like
folder1/subfolder1/
folder1/subfolder2/
folder2/subfolder1/
[...]
And use zsh or bash version >=4.0 you can try
mp3gain **/*.mp3
But make sure to check
the output of
ls **/*.mp3
Before you get serious about mp3gain.