File counter grouped by file extension, tailored for audio files.

audio-file-extension-check.sh

#!/usr/bin/env bash

echo "File type count:"
fileExtensions=( aiff mp3 wav m4a flac alac )

totalFileCount=$(find . -name "*.aiff" -o -name "*.mp3" -o -name "*.wav" -o -name "*.m4a" -o -name "*.flac" -o -name "*.alac" | wc -l)

for fileExtension in "${fileExtensions[@]}"
do
        fileCount=$(find . -name "*.${fileExtension}" | wc -l)
        percent=`echo "$fileCount * 100 / $totalFileCount" | bc -l`
        roundedPercent=`printf "%.0f" $percent`
        echo "${fileExtension}: ${fileCount} files (${roundedPercent}%)"
done
echo ""
echo "File extesions found in directory:"
echo $(find . -type f -name '*.*' | sed 's|.*\.||' | sort -u)