time.py

#!/usr/bin/python

import os
import sys
from datetime import datetime

#-----------------------------------------------------------------------
def usage():
  print("Usage:", sys.argv[0], "<command line>")

#-----------------------------------------------------------------------
def main(args):
  cmd_line = " ".join(args)
  t = datetime.now()
  os.system(cmd_line)
  print("\nTime", datetime.now() - t)

if __name__ == "__main__":
  if len(sys.argv) == 1:
    usage()
  else:
    main(sys.argv[1:])