Does ubuntu mate have a superuser?

Support & Help Requests
1

when i type “hwclock --systohc” in the shell, i am told that only the superuser can use the hardware clock.
Then i type “su” in to get in the root user. When i type “hwclock --systohc” in the shell again ,i am told that " can not access the hardware clock via any known method"
What should i do?

2

Ubuntu does not enable root login by default. Instead you use sudo yourCommand to run a command as superuser.

3

if you need root permissions for a while you can do " sudo -i "