This script tests ping to http://www.puchufy.com. If the result is 100%, it means there is 100% packet loss.
To test, save this as .sh file.
#!/bin/bash ########################################### ### MONITOR CONNECTION TO EXTERNAL SITE ### ########################################### CONN=`ping -c5 -I eth0 www.puchufy.com | grep -oP '\d+(?=% packet loss)'` if [ $CONN -eq 0 ] then result="SUCCESS" else result="FAILED" fi