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sytemd_run_script.md

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run any script at startup with systemd

  1. Create a new unit file in /lib/systemd/system/ called rpi-lcd.service:

    sudo vim /lib/systemd/system/rpi-lcd.service

  2. Copy and paste the following in the new unit file:

    [Unit]
Description=RPi Python script for a 16x2 LCD

[Service]
Type=simple
## Edit the following according to the script permissions
User=root 
#User=pi
#Group=users

## Edit the following with the full path to the compatible Python version and your script
ExecStart=/usr/bin/python3 /home/stereosonic/raspi-lcd-16x2/lcd.py

Restart=always
RestartSec=5

KillMode=process
KillSignal=SIGINT

[Install]
WantedBy=multi-user.target

  3. Enable the service and start it:

    sudo systemctl enable rpi-lcd.service
sudo systemctl start rpi-lcd.service

  4. Check that the LCD is displaying the correct information; otherwise, check the service status:

    systemctl status rpi-lcd.service