#!/bin/bash
 
oldname=`grep .local /etc/hosts | cut -f 4 -d '.' | head -n 1 | sed 's/^.* //'`
 
clear
echo "This server's current name: $oldname"
echo "Enter the new server name :"
read newname
echo " "
echo "This script will change the server name from $oldname to $newname."
echo "The server will then reboot to apply the new settings."
read -p "If everything above is correct, press Enter. Or Ctrl-C to abort."
 
 
sed -i 's|'$oldname'.local|'$newname'.local|g' /etc/hosts
sed -i 's|'$oldname'.local|'$newname'.local|g' /etc/sysconfig/network
sed -i 's|'$oldname'.local|'$newname'.local|g' /etc/sysconfig/network-scripts/ifcfg-eth0
sed -i 's|'$oldname'.local|'$newname'.local|g' /etc/asterisk/vm_general.inc
 
echo " "
echo "The server's name has been changed to: $newname."
echo "The change will not take affect until you reboot."
read -p "To reboot your server NOW, press Enter. Or Ctrl-C to exit."
 
reboot