recursively rename all the files and subdirs of current dir to lowercase

rename-lowercase.py

#!/usr/bin/python
#
# rename-lowercase.py
#
# recursively rename all the files and subdirs of current dir to lowercase
# (for example, from an old MS-DOS .zip)
#
# renombra recursivamente todos los ficheros y subdirectorios del directorio
# actual a minusculas (por ejemplo, proveniente de un antiguo .zip de MS-DOS)
#
import os

def rename_dir_to_lowercase(dir):
    dir_entries = os.listdir(dir)
    for dir_entry in dir_entries:
        old_name = os.path.join(dir, dir_entry)
        new_name = os.path.join(dir, dir_entry.lower())
        if os.path.isfile(old_name):
            print "Renombrando %s a %s" % ( old_name, new_name )
            #print "Renaming from %s to %s" % ( old_name, new_name )
            os.rename( old_name, new_name )
        elif os.path.isdir(old_name):
            print "Entrando en %s" % (old_name)
            #print "Entering into %s" % (old_name)
            rename_dir_to_lowercase( old_name )
            print "Renombrando %s a %s" % ( old_name, new_name )
            #print "Renaming from %s to %s" % ( old_name, new_name )
            os.rename( old_name, new_name )
        else:
            print "%s no es un fichero o directorio" % (old_name)
            #print "%s is not a file or dir" % (old_name)

# You can change '.' to the path you prefer
# Puedes cambiar '.' al directorio de tu eleccion           
rename_dir_to_lowercase('.')

Piensa que era una ñapa rápida para salir del paso... O:-)