[lug] Shell Scripting Help

[David L. Anselmi]

Zan Lynx wrote:
[...]
> Try it this way:
> find . -name "*.m4a" | 
> while read i; do ffmpeg -i "$i" -acodec mp3 -ac 2 -ab 192 "${i%m4a}mp3"; done &&
> find . -name "*.m4a" -print0 | xargs -0 rm -f

An additional suggestion to this.  Rather than running find twice (which 
can be slow on large directory trees--maybe not a problem for you) do:

opts="-acodec mp3 -ac 2 -ab 192"
find . -name "*.m4a" |
   while read i; do ffmpeg -i "$i" $opts "${i%m4a}mp3" && rm "$i"
done

The $opts is just so the line is shorter.

This gets rid of the second find at the expense of running rm once per 
file.  But it only does the rm on a file if its conversion with ffmpeg 
succeeds.

The original "...done && find..." will do the find and rm if the last 
ffmpeg succeeds.  Maybe not what you wanted.

HTH,
Dave