% systemctl, service

# Start service
systemctl start <service_inactive>

# Stop service
systemctl stop <service_active>

# Enable service
systemctl enable <service_disabled>

# Disable service
systemctl disable <service_enabled>

# Restart service
systemctl restart <service>

# Reload service
systemctl reload <service_active>

# Service status
systemctl status <service>

# List running services
systemctl list-units --type=service --state=running

# List enabled services
systemctl list-unit-files --type=service --state=enabled

# List disabled services
systemctl list-unit-files --type=service --state=disabled

$ service_inactive: systemctl list-units --type=service --state=inactive | awk '{print $1}' | grep .service | sed 's/.service$//'
$ service_active: systemctl list-units --type=service --state=active | awk '{print $1}' | grep .service | sed 's/.service$//'
$ service_enabled: systemctl list-unit-files --type=service --state=enabled | awk '{print $1}' | grep .service | sed 's/.service$//'
$ service_disabled: systemctl list-unit-files --type=service --state=disabled | awk '{print $1}' | grep .service | sed 's/.service$//'
$ service: systemctl list-units --type=service --all | awk '{print $1}' | grep .service | sed 's/.service$//'