Renames files according pyzam result

pyzamrename.sh

#!/bin/bash
# pyzamrename.sh
# Renames files according pyzam result

set -e

input=$(pyzam --input "$@")
artist=$(echo "$input" | grep 'Artist:' | cut -d ':' -f 2 | cut -c 2-)

if [ -z "$artist" ]; then
	echo $input
	exit 2
fi

track=$(echo "$input" | grep 'Track:' | cut -d ':' -f 2 | cut -c 2-)
output="$(dirname "$1")/$artist - $track.${1##*.}"

mv "$1" "$output"
echo "$1 > $output"