text: #!/usr/bin/env python3
  import mmap
  import sys
  
  print("This is the name of the script: ", sys.argv[0]        )
  print("Number of arguments: ", len(sys.argv)                 )
  print("The arguments are: " , str(sys.argv)                  )
  
  #https://stackoverflow.com/questions/7052883/how-to-find-substring-in-file
  #  https://teamtreehouse.com/community/fatal-remote-origin-already-exists
  #  https://stackoverflow.com/questions/89228/calling-an-external-command-in-python
  #  https://stackoverflow.com/questions/4940032/how-to-search-for-a-string-in-text-files
  #  https://stackoverflow.com/questions/7052883/how-to-find-substring-in-file
  #  https://docs.python.org/3/library/mmap.html
  #  https://docs.python.org/2/library/mmap.html
  #  http://effbot.org/pyfaq/how-do-i-check-if-an-object-is-an-instance-of-a-given-class-or-of-a-subclass-of-it.htm
  #  https://stackoverflow.com/questions/28011104/undo-git-add-all
  #  https://teamtreehouse.com/community/fatal-remote-origin-already-exists
  #
  
  episode = sys.argv[1]
  print('\n \n \n')
  
  def mmapFinder(s, inSubStr, inOutList):
      if isinstance(s, mmap.mmap):
  	    print("is an instance!")
      # generate the range tuple
      res = s.find(inSubStr)
      print('res:',res)
      if res == -1:
          return inOutList
      else:
          inOutList.append(res)
          t = s[res:]
          mmapFinder(t,inSubStr,inOutList)
  
  
  with open(episode, 'rb', 0) as file:
      s = mmap.mmap(file.fileno(), 0, access=mmap.ACCESS_READ)
      listTst = []
      mmapFinder(s, b'1', listTst)
      tester = s.find(b'Norm')
      print(tester)
      if tester != -1:
              print('true')
              position = tester
              
              print(s[position: position+500].decode('ascii') )
  		
  
  print('\n \n')