Systemctl cheat sheet

Systemctl

   systemctl cat service
   systemctl cat rc-local.service
   systemd-analyze blame
   systemd-analyze time

• Start X from shell

   systemctl start graphical.target 

• List targets

   root@vm:~# ls -l /lib/systemd/system/runlevel*.target
   lrwxrwxrwx 1 root root 15 Jun  7 12:49 /lib/systemd/system/runlevel0.target -> poweroff.target
   lrwxrwxrwx 1 root root 13 Jun  7 12:49 /lib/systemd/system/runlevel1.target -> rescue.target
   lrwxrwxrwx 1 root root 17 Jun  7 12:49 /lib/systemd/system/runlevel2.target -> multi-user.target
   lrwxrwxrwx 1 root root 17 Jun  7 12:49 /lib/systemd/system/runlevel3.target -> multi-user.target
   lrwxrwxrwx 1 root root 17 Jun  7 12:49 /lib/systemd/system/runlevel4.target -> multi-user.target
   lrwxrwxrwx 1 root root 16 Jun  7 12:49 /lib/systemd/system/runlevel5.target -> graphical.target
   lrwxrwxrwx 1 root root 13 Jun  7 12:49 /lib/systemd/system/runlevel6.target -> reboot.target

• Targets

   systemctl get-default (graphical.target / multi-user.target)
   systemctl set-default multi-user.target