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#!/bin/sh

# Search for track(s) on Last.fm, retrieve URL(s)

usage() { echo usage: $0 [-m max] base-url 1>&2; exit 1; }

# Parse options
m=10
while getopts m: o
do
	case $o in
	m) m=$OPTARG ;; # max
	?) usage
	esac
done
shift $((OPTIND-1))
q=$1

m=$((m+0))
test $m -lt 1 && m=10

# Retrieve search results
curl -s -G --data-urlencode "q=$q" 'https://www.last.fm/search/tracks' |
sed '/^[ 	]*$/d' |
awk -F \" '
	/class="chartlist-name"/ {
		getline;
		getline;
		getline;
		getline;
		getline;
		getline;
		print $2;
		i++;
		if (i > '"$((m-1))"') exit;
	}
' |
sed 's,^,https://www.last.fm,'