[liufeng@1.2.3.4 kill-subprocess]$ cat sub-process.py import subprocessimport osimport timedef my_func():#派生兩個子進程，子進程里又派生幾個sleep的孫子進程，主要是為了測試kill進程組。run_str2 = '/bin/sh test.sh'run_str = '/bin/sh test_quick.sh'cmd2 = run_str.split()cmd = run_str.split()#測試了一些個preexec_fn的值，最終發現能用的，對python的對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.pidpgid = os.getpgid(pid)print "pid: %d/n" %pidprint "pgid: %d/n" %pgidreturn pidpid = my_func()#p.wait()print "now , sleep 2s ,then , os.kill gpid %d" % pidtime.sleep(20)a = os.kill(-pid, 9)print "kill,return:"print a# kill的時候，我測試了kill 沒有權限的root進程，會報錯：權限不允許# 測試了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 atime.sleep(22)print "done..."#p.terminate()#p.kill()#p.wait()##time.sleep(40)#os.kill(pid, 9)