#!/bin/sh

if [ $# -eq 0 ]; then
  echo "usage: $(basename $0) <dir>" >&2
  exit 1
fi

for dir do
  dir=${dir%/}
  if [ ! -d $dir ]; then
    echo "Skipping $dir..." >&2
    continue
  fi
  
  file=${dir/\//-}.m3u
  echo "Creating $file" >&2
  ls -1 $dir/*.mp3 > $file

done