#!/bin/bash

upload(){
if [ $? -eq 0 ]; then
   echo "now rebooting $1"
   ssh root@$1 reboot
fi
}

while read ip; do
   echo "reboot $ip"
   upload "$ip"
done <$1

10.1.30.235
10.1.30.1

reboot 10.1.30.235
now rebooting 10.1.30.235
reboot 10.1.30.1
now rebooting 10.1.30.1

reboot 10.1.30.235
now rebooting 10.1.30.235