kazulog@webserver:~$ sudo hostnamectl set-hostname sv1
kazulog@webserver:~$ sudo hostnamectl set-hostname --pretty ''
kazulog@webserver:~$ hostnamectl | head -2
 Static hostname: sv1
       Icon name: computer-vm
kazulog@webserver:~$ cat /etc/hostname
sv1
kazulog@webserver:~$ ls -l /etc/machine-info 2>&1
ls: cannot access '/etc/machine-info': No such file or directory