How to check whether nginx is started in Linux system

First method: View the process list and filter

Every Linux application will generate a process, then we can judge whether the Nginx process is started by checking whether it exists.

Use ps -ef to list the process, and then filter it through grep.

For example: ps -ef | grep nginx You can see whether the Nginx process exists.

Second method: Check the process id directly

ps -C nginx -o pid

This method of directly returning the pid is more suitable for use in conjunction with other programs, such as Execute this command in the shell/python script to get the pid, and then use the pid to determine whether Nginx is started.

It is recommended to use this method.

Third method: Use the netstat command

If our Nginx is running on port 80, then we can use the netstat -anp | grep :80 command to determine whether Nginx is started.

What versions of Linux are there?

Linux versions include: Deepin, UbuntuKylin, Manjaro, LinuxMint, Ubuntu and other versions. Among them, Deepin is one of the best-developed Linux distributions in China; Ubuntu Kylin is a derivative distribution based on Ubuntu; Manjaro is a Linux distribution based on Arch; LinuxMint's default Cinnamon desktop is similar to Windows XP and is simple and easy to use; Ubuntu is a desktop application Mainly Linux operating system.

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