Added a basic MD5 checksum recursive calculation script.

import hashlib

import sys

import os

script, dir = sys.argv

def md5sum(fname):

    hash_md5 = hashlib.md5()

    with open(fname, "rb") as f:

        for chunk in iter(lambda: f.read(4096), b""):

            hash_md5.update(chunk)

    return hash_md5.hexdigest()

for folder, subfolder, files in os.walk(dir, topdown = False):

    #print(folder, os.path.basename(folder), subfolder, files)

    cwd = os.path.basename(folder)

    parent = os.path.dirname(folder)

    #parent = os.path.basename(parent)

    #print(cwd, parent, os.path.abspath(parent))

    #print(os.path.abspath(folder))

    if not os.path.exists(os.path.abspath(parent) + '/' + cwd +  "-md5sum.txt"):

        #if not os.listdir(folder) == []:

        if not files == []:

            md5file = open(os.path.abspath(parent) + '/' + cwd + "-md5sum.txt", 'w')

            for file in files:

                #print(file)

                md5file.write(md5sum(os.path.abspath(folder) + '/' + file) + "  ./" + file)

                md5file.write('\n')

            md5file.close()