import sys
import os
def help(script_name):
	print "Usage:   ", script_name ," url"

if sys.argv[1:]:
	for arg in sys.argv[1:]:
		if arg == '--help':
			help(sys.argv[0])
		elif arg.startswith("-"):
			print arg, " - unknown argument"	
		else:
			if arg.startswith("http://") or arg.startswith("www."):
				site = arg.split(".")[1]		
			else:		
				site = arg.split(".")[0]
			
			if site == 'wrzuta':		
				url = "http://wrzuta.pl/aud/file/" + arg.split("/")[-2:][0]
				os.system("wget -O " +  arg.split("/")[-2:][1] + ".mp3 " + url)	
			
else:
	help(sys.argv[0])