Music scanner script

muz.sh

#!/bin/sh
unset url
pattern="([^\w-]clementine)"
if ps ux | grep -P $pattern | grep -v grep | grep -vq tagreader; then
	# $app is running!
	url=`lsof -F n -c clementine | grep -i "^.*\.mp3$" | sed 's/^n//g'`
	file=`basename "$url"`
	# ft it is a mp3 file, get ID3 info
	title=`id3info "$url" | grep "Title" | sed 's/^===.*[:].//g'` ;		title=$(tr -d '\n' <<<"$title")
	artist=`id3info "$url" | grep "performer" | sed 's/^===.*[:].//g'`;	artist=$(tr -d '\n' <<<"$artist")
	artist=$(tr -d '\n' <<<"$artist")
	
	if [ -z "$title" ] && [ -z "$artist" ]; then
		if (( "${#url}" >= 2 )); then
      			# Cant get id3 info, just print filename
			printf "$(date)\tFile: %-70s\n" "$file"
		fi
	else  
		printf "$(date)\tTitle: %-50s\tArtist: %-20s\n" "$title" "$artist" 
	fi			

elif ps ux | grep -P "([^\w-]vlc)" | grep -v grep | grep -vq tagreader; then
	# $app is running!
	url=`lsof -F n -c vlc | grep -i "^.*\.\(flv\|mp4\|mkv\)$" | sed 's/^n//g'`
	file=`basename "$url"`
	printf "$(date)\tFile: %-70s\n" "$file" 
fi