| #! /usr/bin/env python |
| |
| """Python utility to print MD5 checksums of argument files. |
| |
| Works with Python 1.5.2 and later. |
| """ |
| |
| import sys, md5 |
| |
| BLOCKSIZE = 1024*1024 |
| |
| def hexify(s): |
| return ("%02x"*len(s)) % tuple(map(ord, s)) |
| |
| def main(): |
| args = sys.argv[1:] |
| if not args: |
| sys.stderr.write("usage: %s file ...\n" % sys.argv[0]) |
| sys.exit(2) |
| for file in sys.argv[1:]: |
| f = open(file, "rb") |
| sum = md5.new() |
| while 1: |
| block = f.read(BLOCKSIZE) |
| if not block: |
| break |
| sum.update(block) |
| f.close() |
| print hexify(sum.digest()), file |
| |
| if __name__ == "__main__": |
| main() |