Wake-on-LAN Script

This repository contains a Bash script to send a Wake-on-LAN (WOL) signal to a device on your network. The script reads configuration settings from a .env file, which contains the target device's IP address and MAC address.

Prerequisites

• A Linux environment with Bash support.

• etherwake installed for sending WOL packets. You can install it using:

  sudo apt-get install etherwake

• Ensure your device supports Wake-on-LAN and is properly configured to accept WOL packets.

Setup

1. Clone the repository:

   git clone https://github.com/yourusername/wake-on-lan.git
   cd wake-on-lan

2. Create a .env file in the root of the repository with the following format:

   TARGET_IP=<your_device_ip>
   TARGET_MAC=<your_device_mac>

   Replace <your_device_ip> and <your_device_mac> with the actual IP address and MAC address of the target device.

Script Overview

The provided script performs the following actions:

1. Checks for the .env file and exports the variables defined within it.
2. Sends a WOL signal to the specified device using its MAC address.
3. Waits for the device to come online by pinging its IP address for up to 120 seconds.
4. Outputs the status of the operation, confirming whether the device is online or if a physical check is needed.

Usage

1. Make the script executable:

   chmod +x wake_on_lan.sh

2. Run the script:

   ./wake_on_lan.sh

License

This project is licensed under the GNU General Public License - see the LICENSE file for details.

Acknowledgements

• This script utilizes etherwake for sending Wake-on-LAN packets.
• Inspired by various online resources and community contributions to network automation.