dig test internet connection

digtest.sh

#!/bin/bash

while (true); do
  echo .
  date
  x=$(dig @8.8.8.8)
  if [[ "$x" == *connection\ timed\ out* ]]; then
    echo ------=====OFFLINE=====------
    echo $x
    ping -c 1 8.8.4.4
    dig @4.2.2.2
  else 
    echo OK:ONLINE
  fi
  sleep 10
done