args = cmd.split()
	arguments = []
	i = 0
	while i <= len(args):
		if args[i].startswith('-'):
			if args[i] == '-f' and args[i+1].isdigit():
				arguments.append(args.pop(i))
				arguments.append(args.pop(i))
			else:
				arguments.append(args.pop(i))
		i = i + 1
	return arguments