How do you go from ‘binary’ to ‘service?’

In a modern, systemd-managed Linux environment, a minimal ‘service’ is made of an executable (like a binary or a script) and a systemd unit file. The unit file defines how the executable is called, and manages things like start/stop behavior, service dependencies, and many other configurable settings.

This file would be saved at /etc/systemd/system/daveservice.service
Description=Dave's Very Special Service




Once you make systemd aware of this new unit file — via ‘systemctl daemon-reload’ or a reboot — you can manage it with the basic systemd commands you already know.