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    [Solved]How to start a python script @reboot?

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    • P Offline
      pauabaer
      last edited by

      It does not work at all. At least not the way i hoped.

      see here: https://forum.magicmirror.builders/topic/2468/mmm-pir-sensor-delay

      so i really like to get the python-autostart working. any help?

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      • D Offline
        d3r
        last edited by d3r

        Look into cron.
        [Cron](https://thepihut.com/blogs/raspberry-pi-tutorials/34930820-running-things-regularly-cron

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        • P Offline
          pauabaer
          last edited by

          thanks so far.
          i have already put this as cron: @reboot sudo /usr/bin/python /home/pi/monitor.py &
          but nothing happens

          when i want to start this, i will get this message:
          /etc/init.d/cron restart
          […] Restarting cron (via systemctl): cron.serviceFailed to restart cron.service: Access denied
          failed!
          So what can i do now?

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          • D Offline
            d3r @pauabaer
            last edited by

            @pauabaer It’s easier to just make your python code executable. Then you can just start it with cron with
            @reboot /home/pi/monitor.py

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            • P Offline
              pauabaer
              last edited by

              Two questions:

              1. how do i make it executable?
              2. when the script is executable, the problem with the failure is still existing, isn’t it?
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              • D Offline
                d3r @pauabaer
                last edited by

                @pauabaer To make the code executable:

                1. Add #!/usr/bin/python3 to the top of your code.(1st line)
                2. open terminal and type sudo chmod +x /home/pi/monitor.py (this will make your code executable. You can check that it’s executable by typing “./monitor.py” You code should run.

                Then you can add the line @reboot /home/pi/monitor.py to the crontab.

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                • P Offline
                  pauabaer
                  last edited by

                  Ok. Thanks. I made these two steps and i can see via htop that the script is running.

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