systemctl

UNIT                        LOAD   ACTIVE SUB       DESCRIPTION
sys-devi...block-sr0.device loaded active plugged   VMware_Virtual_IDE_CDROM_Drive
sys-devi...-sda-sda1.device loaded active plugged   VMware_Virtual_S
sys-devi...-sda-sda2.device loaded active plugged   VMware_Virtual_S
sys-devi...block-sda.device loaded active plugged   VMware_Virtual_S
sys-devi...ooth-hci0.device loaded active plugged   /sys/devices/pci0000:00/0000:00:11.0/0000:02:00.0/usb1/1-2/1-2.1/1-2.1:1.0/bluetooth/hci0
sys-devi...et-enp2s1.device loaded active plugged   /sys/devices/pci0000:00/0000:00:11.0/0000:02:01.0/net/enp2s1
sys-devi...und-card0.device loaded active plugged   /sys/devices/pci0000:00/0000:00:11.0/0000:02:02.0/sound/card0
sys-devi...block-fd0.device loaded active plugged   /sys/devices/platform/floppy.0/block/fd0
sys-devi...tty-ttyS2.device loaded active plugged   /sys/devices/platform/serial8250/tty/ttyS2
sys-devi...tty-ttyS3.device loaded active plugged   /sys/devices/platform/serial8250/tty/ttyS3
sys-devi...tty-ttyS0.device loaded active plugged   /sys/devices/pnp0/00:0a/tty/ttyS0
sys-devi...tty-ttyS1.device loaded active plugged   /sys/devices/pnp0/00:0b/tty/ttyS1
sys-devi...em-random.device loaded active plugged   /sys/devices/virtual/mem/random
sys-subs...ices-hci0.device loaded active plugged   /sys/subsystem/bluetooth/devices/hci0
sys-subs...es-enp2s1.device loaded active plugged   /sys/subsystem/net/devices/enp2s1
-.mount                     loaded active mounted   /
dev-hugepages.mount         loaded active mounted   Huge Pages File System
dev-mqueue.mount            loaded active mounted   POSIX Message Queue File System
nix-store.mount             loaded active mounted   /nix/store
sys-kernel-debug.mount      loaded active mounted   Debug File System
systemd-...ord-console.path loaded active waiting   Dispatch Password Requests to Console Directory Watch
systemd-...ssword-wall.path loaded active waiting   Forward Password Requests to Wall Directory Watch
acpid.service               loaded active running   ACPI Daemon
atd.service                 loaded active running   Job Execution Daemon (atd)
cpufreq.service             loaded active exited    Initialize CPU frequency governor
cron.service                loaded active running   Cron Daemon
cupsd.service               loaded active running   CUPS Printing Daemon
dbus.service                loaded active running   D-Bus System Message Bus
dhcpcd.service              loaded active running   DHCP Client
display-manager.service     loaded failed failed    X11 Server
getty@tty1.service          loaded active running   Getty on tty1
klogd.service               loaded active running   Kernel Log Daemon
network-setup.service       loaded active exited    Networking Setup
nscd.service                loaded active running   Name Service Cache Daemon
ntpd.service                loaded active running   NTP Daemon
sshd.service                loaded active running   SSH Daemon
systemd-journald.service    loaded active running   Journal Service
systemd-logind.service      loaded active running   Login Service
systemd-...les-load.service loaded active exited    Load Kernel Modules
systemd-remount-fs.service  loaded active exited    Remount Root and Kernel File Systems
systemd-udev-settle.service loaded active exited    udev Wait for Complete Device Initialization
systemd-...-trigger.service loaded active exited    udev Coldplug all Devices
systemd-udevd.service       loaded active running   udev Kernel Device Manager
systemd-...sessions.service loaded active exited    Permit User Sessions
wpa_supplicant.service      loaded active running   WPA Supplicant
dbus.socket                 loaded active running   D-Bus System Message Bus Socket
nix-daemon.socket           loaded active listening Nix Daemon Socket
systemd-initctl.socket      loaded active listening /dev/initctl Compatibility Named Pipe
systemd-journald.socket     loaded active running   Journal Socket
systemd-shutdownd.socket    loaded active listening Delayed Shutdown Socket
systemd-...d-control.socket loaded active running   udev Control Socket
systemd-udevd-kernel.socket loaded active running   udev Kernel Socket
dev-sda1.swap               loaded active active    /dev/sda1
basic.target                loaded active active    Basic System
bluetooth.target            loaded active active    Bluetooth
getty.target                loaded active active    Login Prompts
graphical.target            loaded active active    Graphical Interface
ip-up.target                loaded active active    Services Requiring IP Connectivity
local-fs-pre.target         loaded active active    Local File Systems (Pre)
local-fs.target             loaded active active    Local File Systems
multi-user.target           loaded active active    Multi-User
network-interfaces.target   loaded active active    All Network Interfaces
network.target              loaded active active    Network
nss-lookup.target           loaded active active    Host and Network Name Lookups
nss-user-lookup.target      loaded active active    User and Group Name Lookups
remote-fs.target            loaded active active    Remote File Systems
sockets.target              loaded active active    Sockets
sound.target                loaded active active    Sound Card
swap.target                 loaded active active    Swap
sysinit.target              loaded active active    System Initialization

LOAD   = Reflects whether the unit definition was properly loaded.
ACTIVE = The high-level unit activation state, i.e. generalization of SUB.
SUB    = The low-level unit activation state, values depend on unit type.

70 loaded units listed. Pass --all to see loaded but inactive units, too.
To show all installed unit files use 'systemctl list-unit-files'.