nginx:reload

The command "systemctl reload nginx" is used to reload the configuration files of the Nginx web server without stopping or restarting the service.

Here's a breakdown of what each component of the command means:

• "systemctl": It is the control command used in systemd-based systems to manage system services.
• "reload": It is an action or operation performed on a service. In this case, it instructs systemctl to reload the specified service.
• "nginx": It is the service or daemon that you want to reload. In this case, it is referring to the Nginx web server.

When this command is executed, systemctl communicates with the Nginx service and instructs it to reload its configuration files. This can be useful when you make changes to the Nginx configuration and want them to take effect without stopping the server or interrupting any active connections.