hostnamectl

Get or set the hostname of the computer. More information: https://manned.org/hostnamectl.

• Get the hostname of the computer:

hostnamectl

• Set the hostname of the computer:

sudo hostnamectl set-hostname "hostname"

• Set a pretty hostname for the computer:

sudo hostnamectl set-hostname --static "hostname.example.com" && sudo hostnamectl set-hostname --pretty "hostname"

• Reset hostname to its default value:

sudo hostnamectl set-hostname --pretty ""