recursively_replace_in_filenames.py

import os
import re
if __name__ == "__main__":
    top = '/tmp/shared'
    ren = '/tmp/shared2'
    for dp, dn, fns in os.walk(top, topdown=False):
        for fn in fns:
            porig = os.path.join(dp, fn)
            if "/." in porig:
                continue
            p = re.sub(r"[^\w/\.]", "-", porig)
            p = p.replace("_", "-")
            p = p.replace("-/", "/")
            p = re.sub(r"\-+", "-", p)
            p = p.replace(top, ren)
            print(p)
            #os.renames(porig, p)