What is a systemd unit?
What is a systemd unit?
Systemd units define resources, such as a service, path, socket, or timer. They are usually managed with the systemctl command.
Systemd units define resources that can be used by the system. Examples of these units are a service, path, socket, and timer. Each unit type has its own basic set of properties that then individually can be configured. Unit types can be recognized by their file extension. A service will use the ‘.service’ extension, making it easy to recognize. Units are usually managed with the systemctl command.
See systemd unit types and their purpose for a full overview of the units.