import os
import sys
import time
import commands


while(True):
  time.sleep(20)
  res = commands.getoutput('top -b -n 1')
  lines = res.split('\n')
  for i in range(len(lines)):
    if ("COMMAND" in lines[i]):
     logfile = open('cpu.log', 'a')   
     logfile.write('\n')
     logfile.write('---------------------------------->\n')                  
     logfile.write('\n')
     logfile.write(lines[i+1] + '\n') 
     logfile.write(lines[i+2] + '\n') 
     logfile.close()