What should I do if CentOS accidentally kills the root user?

The safest way to kill a process is to simply use the kill command.

First use the ps -ef command to determine the pid you want to kill the process, and then enter the following command:

# kill -pid

Note: The standard kill command usually serves the purpose. Terminate the problematic process and release the process's resources to the system. However, if a process starts a child process and only kills the parent process, the child process is still running and therefore still consumes resources.

To prevent these so-called "zombie processes", you should make sure that you kill all of your child processes before killing the parent process.

Determine the PID or PPID of the process you want to kill

# ps -ef |grep httpd* ends the process in an elegant way.

# kill -l pid

The l option tells the kill command to end the process as if the user who started the process has logged out. When this option is used, the kill command also tries to kill the child processes left behind.

#!/bin/bash while [ 1 ] do echo "restart firefox"pgrep firefox &&&killall -9 firefox sleep 1 firefox &> dev null & sleep 30 done shell script: Reboot every 30 seconds, change the number "30" to set the time.

If you want to run the webshellkill software under centos, then you need to correspond to the webshellkill software under the linux system, which is generally executed under the linux system. SH suffix to run the script file, will not run automatically.

#!/bin/bash

while [ 1 ]

doecho "restart firefox"

pgrep firefox &&killall -9 firefox

sleep 1

firefox &>/dev/null &sleep 30

doneshell script:

Restart every 30 seconds, and modify the number "30" to set the time.