Basic commands
systemctl status ssh.service <-- Show a service's status
systemctl start ssh.service <-- Start a service
systemctl stop ssh.service <-- Stop a service
systemctl restart ssh.service <-- Restart a service
systemctl enable ssh.service <-- Enable a service to start automatically (does not start the service)
systemctl enable --now ssh.service <-- Enable a service AND start it right now
systemctl cat ssh.service <-- Show the contents of the service file
systemctl edit ssh.service <-- Edit the contents of the service file (as an override, not mofifying the original service file)Status modifiers
systemctl status ssh.service --no-pager <-- Show service logs, but don't enable vertical scrolling (pagging)
systemctl status ssh.service --lines=0 <-- Don't show any service logs, just the status infoReload systemd to apply changes to itself and/or service files
systemctl daemon-reload