How to Configure Automatic Script Execution on Linux Startup

How to Configure Automatic Script Execution on Linux Startup For Systems Using SysV init Note: The following method is applicable for Linux distributions using SysV init (such as Ubuntu 18.04 and newer versions, or Debian). For distributions using Systemd (such as Ubuntu 18.04 and newer versions), please use the systemctl method to manage startup services. Suppose we need to automatically execute the script xxx.sh on startup. First, create a startup script in the /etc/init.d directory, for example, named autorun.sh: shell sudo nano /etc/init.d/autorun.sh Add the script you need to automatically execute on startup: ```bash title="autorun.sh" !/bin/bash /path/to/xxx.sh # Modify to the specific path ``` Add the autorun.sh script to the system's startup services: shell sudo update-rc.d autorun.sh defaults Set the autorun.sh script to start on boot: shell sudo update-rc.d autorun.sh enable This way, the autorun.sh script will automatically run after restarting. For Systems Using Systemd If your Linux distribution uses Systemd as the startup manager (such as Ubuntu 18.04 and newer versions), you can use the systemctl command to set up automatic startup. Suppose we need to automatically execute the script xxx.sh on startup. First, create a Unit file that describes the service you want to auto-start, such as autorun.service: shell sudo nano /etc/systemd/system/autorun.service In the Unit file, define the configuration of your service. Here is an example: service title="autorun.service" [Unit] Description=My Service After=network.target [Service] ExecStart=/path/to/xxx.sh [Install] WantedBy=default.target The parameters in the above code are: Description: describes your service. After: specifies which other services your service should start after. For example, network.target means your service should start after the network service. ExecStart: specifies the path to the script or command you want to execute. WantedBy: specifies the target your service should be started with. default.target means your service should start when the default target starts. Save and close the file, then run the following command to reload the systemd configuration: shell sudo systemctl daemon-reload Enable your service with the following command: shell sudo systemctl enable autorun.service Finally, start your service with the following command: shell sudo systemctl start autorun.service Now your service is set to run automatically on system startup. You can restart the system to verify that the service starts properly. Original: https://wiki-power.com/ This post is protected by CC BY-NC-SA 4.0 agreement, should be reproduced with attribution. This post is translated using ChatGPT, please feedback if any omissions.