myscripts/vp-37-m4a-2-ogg.sh

#!/bin/bash

# Packages:
#   libav-tools/ffmpeg
#   vorbis-tools

# remove spaces
for i in *.m4a; do
  mv "$i" `echo $i | tr ' ' '_'`;
done

# convert
for file in *.m4a; do
  base=`basename $file .m4a`
  ffmpeg -i $file $base.wav
  oggenc $base.wav -b 192 --resample 44100 -o $base.ogg
  rm $base.wav
done