How to hostname change like ubantu machine?
...........................................
hostnamectl set-hostname IT-maataraitsolution
sudo vi /etc/hostname
sudo vi /etc/hosts (127.0.0.1change mpdify)
less /etc/os-release

How to reboot shutdown?
.......................
sudo systemctl reboot
shutdown now


How to check Ubuntu version in the Terminal
...........................................
lsb_release -a
hostnamectl
cat /etc/*release