#!/usr/bin/env python
# -*- coding: utf-8 -*-

import os, random
from pprint import pprint

ext = ".mp3"
r = random.Random()
r.seed()

current_path=os.getcwd()
for root,dirs,files in os.walk(current_path):
    r.shuffle(files)
    print "cd \"%s\"" % root
    num = 0
    for filename in filter(lambda x: x.lower().endswith(ext), files):
        num+=1
        print "ren \"%s\" \"%03d_%s\"" % (filename, num, filename)