Bash script to use spotdl to download music from Spotify using official spotdl docker container

spotdl

#!/bin/bash

usage() {
  echo ""
  echo "Usage: $0 [URL]"
  echo "Example: $0 https://open.spotify.com/track/0VjIjW4GlUZAMYd2vXMi3b"
}

if [ "$#" -ne 1 ]; then
    echo "Invalid number of arguments!"
    usage
    exit 1
fi

docker run --rm -v $(pwd):/music spotdl/spotify-downloader download $1