Youtube Download and Convert to MP3 Linux

#!/bin/bash

ME=$(echo "Please replace this text with your links to download" 2>&1 | zenity --text-info --editable --width 650 --height 400);

if [ -n "$ME" ]
then
    youtube-dl $ME | zenity --progress --width 350 --pulsate --text "Currently Downloading Videos" --title "Download"
    find . -maxdepth 1 -type f \( -iname '*.webm' -o -iname '*.flv' -o -iname '*.mp4' \) -exec ffmpeg -i {} -vn -ac 2 -ar 44100 -ab 128k -f mp3 {}.mp3 \; | zenity --progress --width 350 --pulsate --text "Converting to MP3" --title "Conversion"
    rm -f *.flv *.webm *.mp4
fi