PI Thunderboard not starting up automatically

Hello Everyone 

I am not a complete novice but I am not an expert when working with the Raspberry Pi. I have modified the rc.local file to start the Thunderboard IOT program on startup, but it fails to startup on reboot. I am  attaching a copy of the /etc/rc.local file so that everyone can see where I am going wrong.

#!/bin/sh -e

#

# rc.local

#

# This script is executed at the end of each multiuser runlevel.

# Make sure that the script will "exit 0" on success or any other

# value on error.

#

# In order to enable or disable this script just change the execution

# bits.

#

# By default this script does nothing.



# Print the IP address

_IP=$(hostname -I) || true

if [ "$_IP" ]; then

printf "My IP address is %s\n" "$_IP"

fi





cd /home/pi/SDL_Pi_ThunderBoard_IOT-master



sudo python ThunderBoardIOT.py & gt; /null

exit 0