#! /bin/sh

# ---------------------------------------
# INSTALL AND CONFIGURE SMTP / GMAIL
# ---------------------------------------
# WARNING: YOU WILL BE REQUIRED TO CHANGE
# YOUR GOOGLE ACCOUNT SETTINGS AND
# ENABLE ACCESS FOR LESS SECURE APPS
# ---------------------------------------

# Install the necessary packages

# sudo apt-get update

# sudo apt-get install mailutils ssmtp

# Edit the ssmtp configuration file

# sudo nano /etc/ssmtp/ssmtp.conf

# Change the mailhub to

# mailhub=smtp.gmail.com:587

# Add the following lines to the end of the file

# AuthUser=yourgmailaddress@gmail.com

# AuthPass=yourgmailpassword

# UseSTARTTLS=YES

# Edit the revaliases file

# sudo nano /etc/ssmtp/revaliases

# Add the following line to the end of the file

# root:yourgmailaddress@gmail.com:smtp.gmail.com:587

# Test the above configuration with the following command

# sudo echo testtext | mail -s testsubject yourgmailaddress@gmail.com

# Create an empty text file in your home directory and call it ip.txt

# Put this script in your home directory

# And make this script executable

# chmod u+x ipmailer.sh

# Edit the cron table

# sudo crontab -e

# Add the following line to the end of the file

# @reboot /home/pi/ipmailer.sh &>/dev/null

# Reboot your Raspberry Pi

# sudo shutdown now -r

SUBJ="Raspberry Pi IP Address"

EMAIL="yourgmailaddress@gmail.com"

IP=$(wget -qO- ifconfig.me/ip)

WLAN0=$(/sbin/ifconfig wlan0 | grep "inet " | awk -F'[: ]+' '{ print $4 }')

# Uncomment the following line to store your internal ethernet address in a variable

# ETH0=$(/sbin/ifconfig eth0 | grep "inet " | awk -F'[: ]+' '{ print $4 }')

echo "PUBLIC: $IP" > /home/pi/ip.txt

echo "WLAN0: $WLAN0" >> /home/pi/ip.txt

# Uncomment the following line to append your internal ethernet address to the text file

# echo "ETH0: $ETH0" >> /home/pi/ip.txt

cat home/pi/ip.txt | mail -s "$SUBJ" $EMAIL