A simple powershell script to turn on a computer in the same network knowing its MAC address (you must enable the wake on lan function in the BIOS/UEFI of the target).

wol.ps1

$Mac = $null

if ($args.count -eq 1 ) {
	$Mac = $args[0]
	$Mac | out-file -filepath .\mac.txt -width 200
	Write-Output "The next time you won't have to re-enter the MAC address because it has been saved on a file in this directory."
}
else{
	$file_data = Get-Content .\mac.txt
	if ( $file_data -eq $null ) {
		Write-Output "error: please enter a MAC address"
		exit
	}
	else{
		$Mac = $file_data
		Write-Output "The previously used MAC adress is $Mac"
	}
}

$MacByteArray = $Mac -split "[:-]" | ForEach-Object { [Byte] "0x$_"}
[Byte[]] $MagicPacket = (,0xFF * 6) + ($MacByteArray  * 16)
$UdpClient = New-Object System.Net.Sockets.UdpClient
$UdpClient.Connect(([System.Net.IPAddress]::Broadcast),7)
$UdpClient.Send($MagicPacket,$MagicPacket.Length)
$UdpClient.Close()

This is my first powershell script, please leave a comment if you notice any possible bugs or optimizations. Thanks! 🙂