How to check whether nginx is installed in Linux

Two viewing methods: 1. Determine whether nginx is installed successfully by checking whether the nginx process exists. The syntax is "ps -ef | grep nginx". If the output information contains nginx information, the installation is successful. Otherwise, the installation is successful. fail. 2. Determine whether nginx is installed successfully by checking the process ID of nginx. The syntax is "ps -C nginx -o pid". If the process ID is output, it means nginx is installed successfully.

#The operating environment of this tutorial: linux7.3 system, Dell G3 computer.

Linux method to check whether nginx is installed

Method 1: Check whether the nginx process exists

Each application running in linux will generate a process. By checking whether the nginx process exists, you can determine whether nginx is successfully installed or whether nginx is running.

ps -ef | grep nginx

The result is as shown below

• ps -ef: List all processes

• grep nginx: Filter out and nginx-independent process

Method 2: Check the process id of nginx

ps -C nginx -o pid

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