An extract from something in the past:
Use
systemctl status .serviceafterwards to ensure that the service is both up, running, and running correctly, or use
journalctl --followin another term window.
If you have bash_completion on your distro, there is tab completion of every switch and every service that is actually installed. systemctl man systemd.index
gives an overview of every systemd-related man page, and man systemd.directives gives an index over (almost) all commands, config files, directives etc.
