Welcome to kriss.run!

sethostname

#!/usr/bin/env bash
__set_hostname() {
    new_hostname="${1}"

    if [ -z "$new_hostname" ]; then
        echo -n "Enter new hostname: "
        read -r response
        if [ -z "$response" ]; then
            echo "No hostname entered. Exiting..."
            return 1
        fi
        new_hostname="$response"
    fi


    hostnamectl set-hostname "$new_hostname"
    sed -i "/^127\.0\.1\.1\s/c\127.0.1.1       $new_hostname" /etc/hosts
    
    echo "Hostname set to $new_hostname!"
}

__set_hostname "$1"