apt-file list systemd | grep bin/
systemd: /bin/journalctl
systemd: /bin/loginctl
systemd: /bin/networkctl
systemd: /bin/systemctl
systemd: /bin/systemd
systemd: /bin/systemd-ask-password
systemd: /bin/systemd-escape
systemd: /bin/systemd-inhibit
systemd: /bin/systemd-machine-id-setup
systemd: /bin/systemd-notify
systemd: /bin/systemd-sysext
systemd: /bin/systemd-sysusers
systemd: /bin/systemd-tmpfiles
systemd: /bin/systemd-tty-ask-password-agent
systemd: /usr/bin/bootctl
systemd: /usr/bin/busctl
systemd: /usr/bin/hostnamectl
systemd: /usr/bin/kernel-install
systemd: /usr/bin/localectl
systemd: /usr/bin/resolvectl
systemd: /usr/bin/systemd-analyze
systemd: /usr/bin/systemd-cat
systemd: /usr/bin/systemd-cgls
systemd: /usr/bin/systemd-cgtop
systemd: /usr/bin/systemd-cryptenroll
systemd: /usr/bin/systemd-delta
systemd: /usr/bin/systemd-detect-virt
systemd: /usr/bin/systemd-id128
systemd: /usr/bin/systemd-mount
systemd: /usr/bin/systemd-path
systemd: /usr/bin/systemd-resolve
systemd: /usr/bin/systemd-run
systemd: /usr/bin/systemd-socket-activate
systemd: /usr/bin/systemd-stdio-bridge
systemd: /usr/bin/systemd-umount
systemd: /usr/bin/timedatectl

• journalctl
• loginctl
• networkctl
• systemctl
• systemd
• systemd-ask-password
• systemd-escape
• systemd-inhibit
• systemd-machine-id-setup
• systemd-notify
• systemd-sysext
• systemd-sysusers
• systemd-tmpfiles
• systemd-tty-ask-password-agent
• bootctl
• busctl
• hostnamectl
• kernel-install
• localectl
• resolvectl
• systemd-analyze
• systemd-cat
• systemd-cgls
• systemd-cgtop
• systemd-cryptenroll
• systemd-delta
• systemd-detect-virt
• systemd-id128
• systemd-mount
• systemd-path
• systemd-resolve
• systemd-run
• systemd-socket-activate
• systemd-stdio-bridge
• systemd-umount
• timedatectl

ps -ef | grep -E "systemd|systemd|dns|dhcp|udevd" | grep -Fv grep
root         333       1  0 10:00 ?        00:00:05 /lib/systemd/systemd-journald
root         419       1  0 10:00 ?        00:00:01 /lib/systemd/systemd-udevd
systemd+     546       1  0 10:00 ?        00:00:07 /lib/systemd/systemd-oomd
systemd+     547       1  0 10:00 ?        00:00:00 /lib/systemd/systemd-resolved
systemd+     548       1  0 10:00 ?        00:00:00 /lib/systemd/systemd-timesyncd
message+     573       1  0 10:00 ?        00:00:04 @dbus-daemon --system --address=systemd: --nofork --nopidfile --systemd-activation --syslog-only
root         680       1  0 10:00 ?        00:00:00 /lib/systemd/systemd-logind
root         682       1  0 10:00 ?        00:00:00 /usr/sbin/thermald --systemd --dbus-enable --adaptive
markjour     2508       1  0 10:05 ?        00:00:01 /lib/systemd/systemd --user
markjour     2523    2508  0 10:05 ?        00:00:00 /usr/bin/dbus-daemon --session --address=systemd: --nofork --nopidfile --systemd-activation --syslog-only
markjour     5461    2508  0 10:11 ?        00:00:00 /usr/libexec/gnome-session-binary --systemd-service --session=ubuntu
root        6630       1  0 10:15 ?        00:00:00 systemd-tty-ask-password-agent --wall