xenial:
root@lp1881312-x:~# dpkg -l systemd|grep systemd ii systemd 229-4ubuntu21.28 amd64 system and service manager root@lp1881312-x:~# systemd-run --scope --slice=user-1000.slice sleep 1000 Running scope as unit run-rad93ed3206334259a90708def087987d.scope. ^Z [1]+ Stopped systemd-run --scope --slice=user-1000.slice sleep 1000 root@lp1881312-x:~# bg [1]+ systemd-run --scope --slice=user-1000.slice sleep 1000 & root@lp1881312-x:~# systemctl show -p Slice run-rad93ed3206334259a90708def087987d.scope Slice=system.slice
root@lp1881312-x:~# dpkg -l systemd|grep systemd ii systemd 229-4ubuntu21.29 amd64 system and service manager root@lp1881312-x:~# systemd-run --scope --slice=user-1000.slice sleep 1000 Running scope as unit run-r4648aaa0fdca485b9b1a2b9a5298fb0f.scope. ^Z [2]+ Stopped systemd-run --scope --slice=user-1000.slice sleep 1000 root@lp1881312-x:~# bg [2]+ systemd-run --scope --slice=user-1000.slice sleep 1000 & root@lp1881312-x:~# systemctl show -p Slice run-r4648aaa0fdca485b9b1a2b9a5298fb0f.scope Slice=user-1000.slice
xenial:
root@lp1881312-x:~# dpkg -l systemd|grep systemd user-1000. slice sleep 1000 334259a90708def 087987d. scope. user-1000. slice sleep 1000 user-1000. slice sleep 1000 & 334259a90708def 087987d. scope
ii systemd 229-4ubuntu21.28 amd64 system and service manager
root@lp1881312-x:~# systemd-run --scope --slice=
Running scope as unit run-rad93ed3206
^Z
[1]+ Stopped systemd-run --scope --slice=
root@lp1881312-x:~# bg
[1]+ systemd-run --scope --slice=
root@lp1881312-x:~# systemctl show -p Slice run-rad93ed3206
Slice=system.slice
root@lp1881312-x:~# dpkg -l systemd|grep systemd user-1000. slice sleep 1000 ca485b9b1a2b9a5 298fb0f. scope. user-1000. slice sleep 1000 user-1000. slice sleep 1000 & ca485b9b1a2b9a5 298fb0f. scope 1000.slice
ii systemd 229-4ubuntu21.29 amd64 system and service manager
root@lp1881312-x:~# systemd-run --scope --slice=
Running scope as unit run-r4648aaa0fd
^Z
[2]+ Stopped systemd-run --scope --slice=
root@lp1881312-x:~# bg
[2]+ systemd-run --scope --slice=
root@lp1881312-x:~# systemctl show -p Slice run-r4648aaa0fd
Slice=user-