#!/bin/bash
NOWIPADDR="/home/scripts/nowipaddr"
GETIPADDR="dig +short myip.opendns.com @resolver1.opendns.com"
LOG="/home/scripts/ip.log"
timestamp=$( date +%T )
curDate=$( date +"%m-%d-%y" )

if [ -f $NOWIPADDR ]; then
  if [[ `$GETIPADDR` = $(< $NOWIPADDR) ]]; then
    echo $curDate $timestamp " IP address check: " $(< $NOWIPADDR) >> $LOG
  else
    $GETIPADDR > $NOWIPADDR
    mail -s "Server IP" email@gmail.com < $NOWIPADDR
fi
else
  curl $GETIPADDR > $NOWIPADDR
  mail -s "Server IP" email@gmail.com < $NOWIPADDR
fi

wget -q -O - checkip.dyndns.org|sed -e 's/.*Current IP Address: //' -e 's/<.*$//' > ~/myip

myip=`wget -q -O - checkip.dyndns.org|sed -e 's/.*Current IP Address: //' -e 's/<.*$//'`<br>
sendEmail -f you@yourmail.com -m $myip

NOWIPADDR="nowipaddr"
GETIPADDR="ifconfig.me"


    if [ -f $NOWIPADDR ]
    then
       if [ `cat $NOWIPADDR` = `curl $GETIPADDR` ]
       then
           echo "no change in IP."
       else
           $GETIPADDR > $NOWIPADDR
           mail -s "IP is $GETIPADDR" yourmailadd@gmail.com
        fi
    else
        curl $GETIPADDR >> $NOWIPADDR
    fi