防止进程使用pkill杀死自己 [英] Prevent process from killing itself using pkill

问题描述

我正在为启动服务脚本编写停止例程:

I'm writing a stop routine for a start-up service script:

do_stop()
{
  rm -f $PIDFILE
  pkill -f $DAEMON || return 1
  return 0
}

问题在于pkill(与killall相同)也与代表脚本本身的进程匹配，并且它基本上会自行终止.该如何解决?

The problem is that pkill (same with killall) also matches the process representing the script itself and it basically terminates itself. How to fix that?

推荐答案

您可以从结果中明确过滤出当前的PID:

You can explicitly filter out the current PID from the results:

kill $(pgrep -f $DAEMON | grep -v ^$$\$)

要正确使用 -f 标志，请确保提供守护程序的整个路径，而不仅仅是子字符串.这样可以防止您杀死脚本(并消除对上面的 grep 的需要)，也可以防止杀死恰好共享该守护程序名称的所有其他系统进程.

To correctly use the -f flag, be sure to supply the whole path to the daemon rather than just a substring. That will prevent you from killing the script (and eliminate the need for the above grep) and also from killing all other system processes that happen to share the daemon's name.

这篇关于防止进程使用pkill杀死自己的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！