Ingredientes : Lame y Mplayer

El script es :

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#!/bin/sh

# Renombramos los espacios de los archivos a _
find . -name ‘* *’ | sort | while read FILE
do

NEWFILE=`echo ${FILE} | sed ’s/ /_/g;’`
mv “${FILE}” ${NEWFILE}
echo ${NEWFILE}
done

# Convertimos wma a mp3 for i in *.wma;
do mplayer -vo null -vc dummy -af resample=44100 -ao pcm "$i" && lame -m j -h --vbr-new -b 160 audiodump.wav -o "`basename "$i" .wma`.mp3";
mv audiodump.wav $f.wav
lame $f.wav
rm $f.wav
done

# Renombramos wma.wav.mp3 a mp3
find . -name ‘*wma.wav.mp3*’ | sort | while read FILE
do
NEWFILE=`echo ${FILE} | sed ’s/wma.wav.mp3/mp3/g;’`
mv “${FILE}” ${NEWFILE}
done

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Y listo el pollo