杀掉所有用户进程，保留当前进程： killall5

最新推荐文章于 2025-11-05 09:30:00 发布

原创最新推荐文章于 2025-11-05 09:30:00 发布 · 6k 阅读

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本文详细介绍了 Linux 下的 killall5 命令，它用于向除内核线程和自身会话进程外的所有进程发送信号。文章解释了如何使用此命令以及其主要用途，并提供了选项说明及退出状态。

本想打算自己造个轮子。发现linux已经有一个圆轮子了

KILLALL5(8)                                                                           Linux System Administrator's Manual                                                                          KILLALL5(8)

NAME
       killall5 -- send a signal to all processes.

SYNOPSIS
       killall5 -signalnumber [-o omitpid[,omitpid..]]  [-o omitpid[,omitpid..]..]

DESCRIPTION
       killall5  is  the  SystemV killall command. It sends a signal to all processes except kernel threads and the processes in its own session, so it won't kill the shell that is running the script it was
       called from. Its primary (only) use is in the rc scripts found in the /etc/init.d directory.

OPTIONS
       -o omitpid
              Tells killall5 to omit processes with that process id.

NOTES
       killall5 can also be invoked as pidof, which is simply a (symbolic) link to the killall5 program.

EXIT STATUS
       The program return zero if it killed processes.  It return 2 if no process were killed, and 1 if it was unable to find any processes (/proc/ is missing).

SEE ALSO
       halt(8), reboot(8), pidof(8)