Control group /:
-.slice
|-user.slice 
| `-user-500.slice 
|   |-user@500.service ...
|   | |-session.slice 
|   | | `-dbus.service 
|   | |   |- 3587 /bin/dbus-daemon --session --address=systemd: --nofork --no...
|   | |   |- 3777 /usr/libexec/goa-daemon
|   | |   `- 3791 /usr/libexec/goa-identity-service
|   | |-app.slice 
|   | | |-gvfs-goa-volume-monitor.service 
|   | | | `- 3772 /usr/libexec/gvfs/gvfs-goa-volume-monitor
|   | | |-dconf.service 
|   | | | `- 3644 /usr/libexec/dconf-service
|   | | |-gvfs-daemon.service 
|   | | | |- 3621 /usr/libexec/gvfs/gvfsd
|   | | | |- 3802 /usr/libexec/gvfs/gvfsd-trash --spawner :1.3 /org/gtk/gvfs/...
|   | | | |- 4383 /usr/libexec/gvfs/gvfsd-network --spawner :1.3 /org/gtk/gvf...
|   | | | `- 4396 /usr/libexec/gvfs/gvfsd-dnssd --spawner :1.3 /org/gtk/gvfs/...
|   | | |-gvfs-udisks2-volume-monitor.service 
|   | | | `- 3726 /usr/libexec/gvfs/gvfs-udisks2-volume-monitor
|   | | |-gvfs-gphoto2-volume-monitor.service 
|   | | | `- 3764 /usr/libexec/gvfs/gvfs-gphoto2-volume-monitor
|   | | |-obex.service 
|   | | | `- 3794 /usr/libexec/bluetooth/obexd
|   | | |-at-spi-dbus-bus.service 
|   | | | |- 3627 /usr/libexec/at-spi-bus-launcher
|   | | | |- 3632 /bin/dbus-daemon --config-file=/usr/share/defaults/at-spi2/...
|   | | | `- 3652 /usr/libexec/at-spi2-registryd --use-gnome-session
|   | | |-gvfs-mtp-volume-monitor.service 
|   | | | `- 3754 /usr/libexec/gvfs/gvfs-mtp-volume-monitor
|   | | `-gvfs-afc-volume-monitor.service 
|   | |   `- 3758 /usr/libexec/gvfs/gvfs-afc-volume-monitor
|   | `-init.scope 
|   |   |- 3514 /lib/systemd/systemd --user
|   |   `- 3516 (sd-pam)
|   `-session-3.scope 
|     |- 3475 lightdm --session-child 14 21
|     |- 3526 /usr/bin/gnome-keyring-daemon --daemonize --login
|     |- 3529 /usr/bin/mate-session
|     |- 3574 ssh-agent -u
|     |- 3650 /usr/libexec/mate-settings-daemon
|     |- 3658 marco
|     |- 3666 /usr/bin/pulseaudio --start --log-target=syslog
|     |- 3667 mate-panel
|     |- 3681 /usr/bin/caja
|     |- 3687 mate-screensaver
|     |- 3688 blueberry-tray
|     |- 3689 /usr/bin/python3 /usr/share/system-config-printer/applet.py
|     |- 3690 mate-power-manager
|     |- 3691 parcellite
|     |- 3692 krb5-ticket-watcher -i 31
|     |- 3698 nm-applet
|     |- 3704 blueberry-obex-agent
|     |- 3709 mate-volume-control-status-icon
|     |- 3711 /usr/libexec/polkit-mate-authentication-agent-1
|     |- 3814 /bin/sh /usr/share/blueberry/safechild /usr/sbin/rfkill event
|     |- 3815 /usr/sbin/rfkill event
|     |- 3840 /usr/lib/pulse/gsettings-helper
|     |- 3918 mate-terminal
|     |- 3967 bash
|     |- 4010 su -
|     |- 4016 -bash
|     |- 5100 /bin/bash ./collecting_information.sh
|     |- 7395 dbus-launch --exit-with-session /usr/bin/mate-session --version
|     |- 7396 /bin/dbus-daemon --syslog --fork --print-pid 5 --print-address ...
|     |- 9225 /usr/bin/python2.7 /usr/sbin/sosreport
|     |- 9379 timeout 300s systemd-cgls
|     `- 9380 systemd-cgls
|-init.scope 
| `- 1 /lib/systemd/systemd splash --system --deserialize 37
`-system.slice 
  |-systemd-udevd.service 
  | |- 2139 /lib/systemd/systemd-udevd
  | |- 9298 (udev-worker)
  | |- 9369 (udev-worker)
  | |- 9370 (udev-worker)
  | `- 9371 (udev-worker)
  |-nfs-mountd.service 
  | `- 3487 /usr/sbin/rpc.mountd
  |-polkit.service 
  | `- 2336 /usr/libexec/polkit-1/polkitd --no-debug
  |-chronyd.service 
  | `- 4887 /usr/sbin/chronyd
  |-multipathd.service 
  | `- 2129 /sbin/multipathd -d -s
  |-wpa_supplicant.service 
  | `- 2746 /usr/sbin/wpa_supplicant -u
  |-lightdm.service 
  | |- 3393 /usr/sbin/lightdm
  | `- 3399 X -nolisten tcp :0 -seat seat0 -auth /run/lightdm/root/:0 -nolist...
  |-ModemManager.service 
  | `- 2426 /usr/sbin/ModemManager
  |-httpd2.service 
  | |- 2674 /usr/sbin/httpd2 -DFOREGROUND -k start
  | |- 2779 /usr/sbin/httpd2 -DFOREGROUND -k start
  | `- 2781 /usr/sbin/httpd2 -DFOREGROUND -k start
  |-systemd-journald.service 
  | `- 2101 /lib/systemd/systemd-journald
  |-sshd.service 
  | `- 2484 /usr/sbin/sshd -D
  |-crond.service 
  | `- 2480 /usr/sbin/crond -n
  |-NetworkManager.service 
  | `- 2437 /usr/sbin/NetworkManager --no-daemon
  |-bind.service 
  | `- 4815 /usr/sbin/named -u named
  |-rpc-statd.service 
  | `- 3484 /sbin/rpc.statd
  |-nslcd.service 
  | `- 2467 /usr/sbin/nslcd
  |-ahttpd.service 
  | `- 2498 /usr/bin/guile --no-auto-compile /usr/sbin/ahttpd
  |-systemd-userdbd.service 
  | |- 2140 /lib/systemd/systemd-userdbd
  | |- 5058 systemd-userwork: waiting...
  | |- 5059 systemd-userwork: waiting...
  | `- 5060 systemd-userwork: waiting...
  |-rpcbind.service 
  | `- 2253 /sbin/rpcbind -w
  |-nfs-idmapd.service 
  | `- 2275 /usr/sbin/rpc.idmapd
  |-nscd.service 
  | `- 4487 /usr/sbin/nscd --foreground
  |-postfix.service 
  | |- 3383 /usr/libexec/postfix/master -w
  | |- 3384 pickup -l -t fifo -u -c
  | `- 3385 qmgr -l -t fifo -u -c
  |-cups.service 
  | `- 2481 /usr/sbin/cupsd -l
  |-upower.service 
  | `- 3734 /usr/libexec/upower/upowerd
  |-alteratord.service 
  | `- 2315 /usr/bin/guile --no-auto-compile /usr/sbin/alteratord
  |-udisks2.service 
  | `- 3729 /usr/libexec/udisks2/udisksd
  |-dbus.service 
  | `- 2331 /bin/dbus-daemon --system --address=systemd: --nofork --nopidfile...
  |-xinetd.service 
  | `- 3485 /usr/sbin/xinetd -stayalive -remlock
  |-avahi-daemon.service 
  | |- 2319 avahi-daemon: running [xybo6vso6xqg1.local]
  | `- 2340 avahi-daemon: chroot helper
  `-systemd-logind.service 
    `- 2337 /lib/systemd/systemd-logind
