#!/bin/bash
# Licence : GPL v3
# Author: Laurent HUBERT
#
# Changes the machine hostname
#
cat <<EOF
+---------------------------------------------+
| Changing hostname                           |
+---------------------------------------------+
EOF
read -p "Please enter new hostname: " answer

if [ -n "$answer" ]
then
  echo "Changing hostname to $answer"
  current=$(hostname)
  sed -i.firstboot.backup s/$current/$answer/g /etc/hostname
  sed -i.firstboot.backup s/$current/$answer/g /etc/hosts
  hostname $answer
  echo "> Hostname changed to $answer <"
  exit 0
else
  # Exit with non zero status
  echo "### Could not change hostname   ###"
  exit 1
fi