service

The "service" command is a versatile command-line tool available in most Unix-like operating systems. It provides an interface to manage system services, that are typically background processes running on the system. With the "service" command, users can start, stop, restart, enable, disable, and check the status of various services on their system. The syntax for using the "service" command is usually: "service [service-name] [action]". Service names can vary based on the distribution, but common examples include "nginx", "apache2", "mysql", "ssh", etc. It is often used by system administrators to manage and troubleshoot services, as well as by users who need to control specific services on their machines. The "service" command also usually provides a way to view the log output of a service, making it helpful for diagnosing issues related to the services running on a system.