I know there are ways to replace sed by some shell expansion or so. Description This utility allows you to easily turn on one or more computers remotely by sending Wake-on-LAN (WOL) packet to the remote computers. It is used here to remove ':' and add \x to each pair of characters in the magic packet's forged string. (1) Well, indeed, sed is not explicitly required. In this case replace $Broadcast address by the destination public IP, and open/forward the specified $PortNumber (UDP) on destination. The above one-line bash command should work too for wake on LAN via internet.The specific port number seems not to be important on WOL. NetCat's OpenBSD version has a bug as for today (Juy 2015) on broadcast data sending ( -b), so you will have to replace it by NetCat Traditional version (netcat-traditional package on apt-get installers). CygWin's NetCat version doesn't need for -b parameter.Tested working on Ubuntu, Kali and even CygWin (Windows 7 SP 1 64 bits ). NetworkManager supports WOL since version 1.0.6 and you can enable it from either your desktop network configuration GUI, or the nm-connection-editor GUI from nm-connection-editor, or from the nmcli command-line tool using this command: sudo nmcli c modify 'wired1' 802-3-ethernet.wake-on-lan magic. Configuring ip helper-address takes care of 1. Configuring ip directed-broadcast (which is what the link you posted is talking about) takes care of 2. 2) receiving the magic packet which is configured on the LAN where the client is. There are different types of Magic Packets that can be used depending on the NIC manufacturer and driver. This requires the PC network interface and BIOS to support WOL. Library for Sending magic packets and performing IP address operations. SoCat can be used instead (syntax will differ, of course). 1) sending the magic packet from the server to the client which is configured on the vlan where the server is. Wake On Lan basics The idea of Wake On Lan (WOL) is to trigger the 'wake up' (boot-up) of a device from the LAN via a specific Ethernet packet called Magic Packet. dotnet add package WakeOnLAN -version 2.0.2. The forged wake on LAN package is sent to the network stack piping it to NetCat.and so on) prior to sending the string to the network stack. Once rebooted into Windows, click the Start menu and search for 'Device Manager.' Launch the Device Manager, find the Network Adapters section, and expand it to. The sed command is used here to remove colons ( :) from the MAC and to add the \x hex specificator (so that 11 becomes \x11, 22 becomes \x22.The WOL magic packet is composed of ffffffffffff (12 times f) followed by 16 times the destination MAC without colons ( :).Requires Python 3.7 Usage WOL is designed to be used from the command line. The command line would be: echo -e $(echo $(printf 'f%.0s' ) | sed -e 's/./\\x
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