Run scripts on startup Raspberry PI

1. Create a bash script

sudo nano start.sh

Example:

#!/bin/sh
sleep 10
cd /
cd home/pi/
sudo python program.py &
cd /

sleep 10 is needed to load system respos first

2. Change rights to 775

sudo chmod 775 start.sh

3. Make a crontab

sudo crontab -e

4. Make a log file to catch all the errors

mkdir logs
chmod 775 logs

5. Add the following line to the crontab

@reboot sudo sh /home/pi/start.sh >/home/pi/logs/cronlog 2>&1

6. Now reboot

sudo reboot