MD5

To check the md5 checksum of a file:

• Linux:

md5sum <filename>

• Mac OS X:

md5 <filename>

• Windows :

  1. save this md5sum.py file:

     import sys
     import os
     import md5
     
     if len(sys.argv) == 1:
         print 'Usage: %s <filename>' % os.path.basename(sys.argv[0])
     else:
         print md5.md5(file(sys.argv[1]).read()).hexdigest()

  2. launch:

     python md5sum.py <filename>