Introduction

After setting up my router to run dd-wrt I’ve used PuTTy to ssh into the router to start my desktop machine to work on it through a RDP session.

After spending months looking up the correct MAC address in my phone and typing the commands by hand I finally took a bit of time to write a small bash script on the router so that I could simply run the script each time I needed it.

Creating the script

On my router (WRT54GL) there’s a bit of space in the /jffs folder that’s usable for storing scripts.

To write a script named wol.sh go to the correct directory and type:

vi wol.sh

VI opens in command mode. To start editing press the INSERT key. At the bottom left of the screen a “I” will be displayed. The editor is now in editing mode. I just wrote:

#!/bin/ash**
echo "Waking up 19\" system"
/usr/sbin/wol -i 192.168.100.255 -p 9 xx:xx:xx:xx:xx:xx
echo "Done"

Where xx:xx:xx:xx:xx:xx is the MAC address of my network card.

To get back in command mode press ESCAPE.

Then to save the file and exit type :wq and ENTER:

  • the semicolon starts the command
  • wq stands for write and quit

This creates the script, the only thing left is to make is executable:

chmod 700 wol.sh

Running the script

From now on, the script can be started by going to the correct directory and typing:

./wol.sh

The script will be called and run the commands. If there are any error messages they will be displayed.

Credits