[liufeng@1.2.3.4 kill-subprocess]$ cat sub-process.py 
import subprocess
import os
import time

def my_func():

#派生兩個(gè)子進(jìn)程，子進(jìn)程里又派生幾個(gè)sleep的孫子進(jìn)程，主要是為了測(cè)試kill進(jìn)程組。

run_str2 = '/bin/sh test.sh'
run_str = '/bin/sh test_quick.sh'
cmd2 = run_str.split()
cmd = run_str.split()

#測(cè)試了一些個(gè)preexec_fn的值，最終發(fā)現(xiàn)能用的，對(duì)python的對(duì)象的概念還是不理解啊，新手，新手。

#p = subprocess.Popen(cmd, stdin = subprocess.PIPE, stdout = subprocess.PIPE, stderr = subprocess.PIPE, shell = False, creationflags = subprocess.CREATE_NEW_PROCESS_GROUP)

#p = subprocess.Popen(cmd, stdin = subprocess.PIPE, stdout = subprocess.PIPE, stderr = subprocess.PIPE, shell = False, creationflags = 0)

p = subprocess.Popen(cmd, stdin = subprocess.PIPE, stdout = subprocess.PIPE, stderr = subprocess.PIPE, shell = False, preexec_fn = os.setpgrp )

p2 = subprocess.Popen(cmd2, stdin = subprocess.PIPE, stdout = subprocess.PIPE, stderr = subprocess.PIPE, shell = False, preexec_fn = os.setpgrp )

#@p = subprocess.Popen(cmd, stdin = subprocess.PIPE, stdout = subprocess.PIPE, stderr = subprocess.PIPE, shell = False, preexec_fn = os.setpgid(0, 0) )


pid = p.pid
pgid = os.getpgid(pid)
print "pid: %d\n" %pid
print "pgid: %d\n" %pgid
return pid


pid = my_func()
#p.wait()
print "now , sleep 2s ,then , os.kill gpid %d" % pid
time.sleep(20)


a = os.kill(-pid, 9)
print "kill,return:"
print a


# kill的時(shí)候，我測(cè)試了kill 沒(méi)有權(quán)限的root進(jìn)程，會(huì)報(bào)錯(cuò)：權(quán)限不允許
# 測(cè)試了kill p p2 都可以kill
#a = os.kill(2445, 9)
#print "kill root process 2445 ,return:"
#print a
#p.wait()
#os.waitpid(pgid, 0)
# 2445 is a root process
#os.waitpid(2445, 0)
#os.waitpid(p2.pid, 0)
os.waitpid(pid, 0)
print "waitpid,return:"
print a
time.sleep(22)


print "done..."


#p.terminate()
#p.kill()
#p.wait()
#
#time.sleep(40)
#os.kill(pid, 9)