ExecStart

https://www.freedesktop.org/software/systemd/man/systemd.service.html

.service

/lib/systemd/system/postgresql.service
ExecStart=/bin/true

Related

• ExecReload
• systemctl status

See also

• systemd, .service, /lib/systemd/system/, /etc/systemd/system/, Type=, systemctl list-units --type=service, systemctl daemon-reload, ExecStart, .timer, .mounts, .wants, .socket
• Systemd: systemctl, systemd-journald, journalctl systemd-cat, systemd-logind, systemd-networkd:networkctl, systemd-timesyncd, systemd-resolved, systemd-udevd , Systemd-logind: loginctl, hostnamectl, udevadm, systemd-run, portablectl, systemd-nspawn, systemd resource management, Timer (systemd), systemd logs, /etc/systemd/, systemd services, systemd-mount, /run/systemd/, .service, /usr/lib/systemd/, /usr/lib/systemd/system/, /usr/lib/systemd/system/systemd-resolved.service, /lib/systemd/, machinectl, systemd-oomd, systemd-analyze

https://wiki.ubuntu.com/DebuggingSystemd