$ systemctl --type=service
UNIT                                                  LOAD   ACTIVE SUB     DESCRIPTION
accounts-daemon.service                               loaded active running Accounts Service
acpid.service                                         loaded active running ACPI event daemon
alsa-restore.service                                  loaded active exited  Save/Restore Sound Card State
apparmor.service                                      loaded active exited  AppArmor initialization
apport.service                                        loaded active exited  LSB: automatic crash report generation
avahi-daemon.service                                  loaded active running Avahi mDNS/DNS-SD Stack
binfmt-support.service                                loaded active exited  Enable support for additional executable binary formats
bluetooth.service                                     loaded active running Bluetooth service
bolt.service                                          loaded active running Thunderbolt system service
colord.service                                        loaded active running Manage, Install and Generate Color Profiles
console-setup.service                                 loaded active exited  Set console font and keymap
cron.service                                          loaded active running Regular background program processing daemon
cups-browsed.service                                  loaded active running Make remote CUPS printers available locally
cups.service                                          loaded active running CUPS Scheduler
dbus.service                                          loaded active running D-Bus System Message Bus
fwupd.service                                         loaded active running Firmware update daemon
gdm.service                                           loaded active running GNOME Display Manager
grub-common.service                                   loaded active exited  LSB: Record successful boot for GRUB
irqbalance.service                                    loaded active running irqbalance daemon
kerneloops.service                                    loaded active running Tool to automatically collect and submit kernel crash signatures
keyboard-setup.service                                loaded active exited  Set the console keyboard layout
kmod-static-nodes.service                             loaded active exited  Create list of required static device nodes for the current kernel
lm-sensors.service                                    loaded active exited  Initialize hardware monitoring sensors
ModemManager.service                                  loaded active running Modem Manager
networkd-dispatcher.service                           loaded active running Dispatcher daemon for systemd-networkd
networking.service                                    loaded active exited  Raise network interfaces
NetworkManager-wait-online.service                    loaded active exited  Network Manager Wait Online
NetworkManager.service                                loaded active running Network Manager
nginx.service                                         loaded active running A high performance web server and a reverse proxy server
nvidia-persistenced.service                           loaded active running NVIDIA Persistence Daemon
packagekit.service                                    loaded active running PackageKit Daemon
polkit.service                                        loaded active running Authorization Manager
rsyslog.service                                       loaded active running System Logging Service
rtkit-daemon.service                                  loaded active running RealtimeKit Scheduling Policy Service
setvtrgb.service                                      loaded active exited  Set console scheme
snapd.seeded.service                                  loaded active exited  Wait until snapd is fully seeded
snapd.service                                         loaded active running Snappy daemon
speech-dispatcher.service                             loaded active exited  LSB: Speech Dispatcher
systemd-backlight@backlight:intel_backlight.service   loaded active exited  Load/Save Screen Backlight Brightness of backlight:intel_backlight
systemd-fsck@dev-disk-by\x2duuid-C403\x2d4F78.service loaded active exited  File System Check on /dev/disk/by-uuid/C403-4F78
systemd-journal-flush.service                         loaded active exited  Flush Journal to Persistent Storage
systemd-journald.service                              loaded active running Journal Service
systemd-logind.service                                loaded active running Login Service
systemd-modules-load.service                          loaded active exited  Load Kernel Modules
systemd-random-seed.service                           loaded active exited  Load/Save Random Seed
systemd-remount-fs.service                            loaded active exited  Remount Root and Kernel File Systems
systemd-resolved.service                              loaded active running Network Name Resolution
systemd-sysctl.service                                loaded active exited  Apply Kernel Variables
systemd-timesyncd.service                             loaded active running Network Time Synchronization
systemd-tmpfiles-setup-dev.service                    loaded active exited  Create Static Device Nodes in /dev
systemd-tmpfiles-setup.service                        loaded active exited  Create Volatile Files and Directories
systemd-udev-trigger.service                          loaded active exited  udev Coldplug all Devices
systemd-udevd.service                                 loaded active running udev Kernel Device Manager
systemd-update-utmp.service                           loaded active exited  Update UTMP about System Boot/Shutdown
systemd-user-sessions.service                         loaded active exited  Permit User Sessions
thermald.service                                      loaded active running Thermal Daemon Service
udisks2.service                                       loaded active running Disk Manager
ufw.service                                           loaded active exited  Uncomplicated firewall
unattended-upgrades.service                           loaded active running Unattended Upgrades Shutdown
upower.service                                        loaded active running Daemon for power management
user@1000.service                                     loaded active running User Manager for UID 1000
user@121.service                                      loaded active running User Manager for UID 121
whoopsie.service                                      loaded active running crash report submission daemon
wpa_supplicant.service                                loaded active running WPA supplicant