new_contents: """
  Do the rotation action that some products need
  $Id: $:
  """
  import sys
  import os
  import gzip
  
  if __name__ == '__main__':
      # blah/file_
      data = sys.stdin.read()
      filename = sys.argv[1]
      dirname = "/home/ldm/data/" +  "/".join( filename.split("/")[:-1] )
      if not os.path.isdir(dirname):
          os.makedirs(dirname)
  
      o = open("/home/ldm/data/%s" % (filename,), 'wb')
      o.write(data)
      o.close()
      
      os.chdir(dirname)
      os.system("unzip -o /home/ldm/data/%s" % (filename,))
subject: add unzip