yamlgen

#!/bin/bash
output="$1"
dir="$2"
shopt -s nullglob
{ 
  echo product-id: $((RANDOM%1024))
  echo "media-path: $dir/%s"
  echo "comment: An example GME file"
  echo "init: $mode:=1"
  echo "welcome: START"
  echo "scripts:"
} > "$output"
count=8066

while IFS= read -r -d '' file
do 
  newfile=$(echo "${file##*/}"|tr -dc "a-zA-Z0-9_")
  endung=${newfile: -3}
  [[ "$file" != $dir/${newfile%$endung}.$endung ]] && mv "$file" "$dir/${newfile%$endung}.$endung"
done < <(find "$dir" -type f \( -name "*.mp3" -o -name "*.ogg" \) -print0)

for i in "$dir"/*.ogg "$dir"/*.mp3
do
  if [[ "$i" != "$dir"/START.* ]] 
  then
    echo "  $count:"
    fname=${i##*/}
    echo "  - P(${fname%.*})"
    ((count+=1))
  fi
done >> "$output"