Update title for mp3 files
for f in *.mp3; do ffmpeg -i "$f" -metadata title="$f" "Fooled_by_Randomness_$f"; done
Append 0 to all filenames
for f in *.mp3; do mv "$f" "0$f"; done
Get filename without extension
for f in *.mp3; do echo $(basename ${f%.*}); done