Typical way of managing systemd services

Show unit types:

systemctl -t help

List all installed units:

systemctl list-unit-files

List active units:

systemctl list-units

Enable, but doesn't start a service:

systemctl enable name.service

Enable and start a service simultaneously:

systemctl enable name.service --now

Starts a service:

systemctl start name.service

Disable, but doesn't stop a service:

systemctl disable name.service

Disable and stop a service simultaneously:

systemctl disable name.service --now

Stops a service:

systemctl stop name.service

Gives information about the service:

systemctl status name.service