#!/usr/bin/python

"""
  Lezione numero 4
"""

# Esempio di file rename, da spazi ad underscore

import os, string, sys

if len(sys.argv) == 1:
  filenames = os.listdir(os.curdir)
else:
  filenames = sys.argv[1:]

for filename in filenames:
  if ' ' in filename:
    newfilename = string.replace(filename, ' ', '_')
    print "Rinomino ", filename, " -> ", newfilename, "..."
    os.rename(filename, newfilename)