#!/usr/bin/env bash
#
# Highly specific script
#
# Logs in to jumphost, that miraculously is the only host being able to reach
# the powerline-connected WiFi switch. It grabs the Delock switch's current IP
# address based on its MAC address and sents the Tasmota command to toggle the
# switch ON/OFF

jumphost_addr=n.n.n.n
jumphost_user=jumphostuser
target_mac="<some-mac-address>"
ssh $jumphost_user@$jumphost_addr "/sbin/arp -n | grep $target_mac | awk {'print \$1'} | xargs -I _ curl -s http://_/cm?cmnd=Power%20TOGGLE"