Linux系统重启python程序

 #! /usr/bin/env python
 #coding=utf-8

 import sys
 import ConfigParser
 import urllib
 import urllib2
 from util import http_server
 from logger import logger
 import json
 import traceback
 import time

 reload(sys)
 sys.setdefaultencoding('utf-8')

 import os
 import signal

 Max_process = 2
 log_index = 0

 # start python program
 def start():
     global Max_process
     global log_index
     path = os.popen('pwd').readlines()[0]
     print path,'==='
     os.system('nohup python serverdate.py &')
     time.sleep(10)

 #stop child
 def stopChild():
     processInfo = os.popen("ps -ef|grep serverdate.py|grep -v grep|awk '{print $2}'").readlines()
     print processInfo,'------'
     for pid in processInfo:
         os.kill(int(pid),signal.SIGKILL)

 #stop parent
 def stopParent():
     parentList = os.popen("ps -ef|grep serverdate.py|grep -v grep|awk '{print $2}'").readlines()
     print parentList,'***'
     for pid in parentList:
         os.kill(int(pid),signal.SIGKILL)

 def stopAll():
     stopChild()
     stopParent()

 try:
     fun = sys.argv[1]
 except Exception:
     fun = ''
 if(fun == 'start'):
     start()
 if(fun == 'stop'):
     stopAll()
 if(fun == 'restart'):
     stopAll()
     time.sleep(10)
     start()

使用方法：python  serverdate.py start|stop|restart