PATH=/usr/sbin:/usr/bin:/sbin:/bin
* * * * * /home/jj/Desktop/IP/publicIP.sh

#!/bin/bash

#Give crontab a path to follow according to what i have read ?????
PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/home/jj/Desktop/IP/


#Get last saved IP address
ip1=$( cat /home/jj/Desktop/IP/ip.address.txt )

#This is the command to see public IP address
dig +short myip.opendns.com @resolver1.opendns.com > ip.address.txt

#This is the updated IP adress currently in use
ip2=$( cat /home/jj/Desktop/IP/ip.address.txt )

#Check to see if it is the same IP
    if [ $ip1 != $ip2 ]; then

#If the IP is different, the IP has changed. Notify me via email
    cat /home/jj/Desktop/IP/ip.address.txt | mail -s "IP Address" user@gmail.com

#EOF
fi

> ip.address.txt

> /home/jj/Desktop/IP/ip.address.txt