How to add crontab job

Add crontab job

sudo crontab -e

Choose "1" then press Enter

Add a line at the end of the file that reads like this:

@reboot python /home/pi/x735-v2.5/pwm_fan_control.py

Please note the path of this file, this is very important!!

you can place the other shell command.

Save and exit (CTRK + O and ENTER to save it). In nano editor, you do that by hitting CTRL + X, answering Y and hitting Enter when prompted.

Please run 'sudo reboot' to reboot device to enable crontab job.

sudo crontab -e

then remove the command line by yourself.