use of comm and sort tools

[Linux for blind general discussion]

This worked for me without the temporary text files.


for f in *m4a; do if test \! -f "${f%%.m4a}.mp3"; then echo "$f exists, 
but ${f%%.m4a}.mp3 does not."; fi; done

Works for me using bash and zsh, your mileage may vary if you use a 
different shell.

~Kyle