Run a Program On Your Raspberry Pi At Startup rpi start

https://www.dexterindustries.com/howto/run-a-program-on-your-raspberry-pi-at-startup/

sudo nano /etc/rc.local


sudo python3 /home/pi/record_solar_data_to_sql_rpi_5k.py &
# sudo python3 /home/pi/record_solar_data_to_sql_rpi_30k.py &

list running:

sudo ps aux | grep -i record

kill process

sudo kill 449