#!/usr/bin/python
import string
import shutil
import os
import re
import sys

if len(sys.argv) < 3:
	print "usage: rename old#names new#names"
	print "       # can be anywhere"
	sys.exit()

nameFrom = sys.argv[1]
nameTo = sys.argv[2]

nameFromParts = string.split(nameFrom,"#")
nameToParts = string.split(nameTo,"#")

nameFromRe = "^" + nameFromParts[0] + "(.*)" + nameFromParts[1] + "$"
nameToRe = "^" + nameToParts[0] + "(.*)" + nameToParts[1] + "$"

print "nameFromRe",nameFromRe
print "nameToRe",nameToRe


for fileName in os.listdir("."): 
	mo = re.match(nameFromRe,fileName)
	if mo:
		newFileName = nameToParts[0] + mo.group(1) + nameToParts[1]
		shutil.move(fileName,newFileName)
		print "renamed",fileName,newFileName