Shutdown over SSH

ssh-poweroff.sh

#!/bin/bash

# global vars
# static
USERNAME='user'
IP='192.168.0.100'
# dynamic
command='sudo poweroff'


function main() 
{
# ssh -t
# force pseudo-terminal allocation
# which can be used to execute arbitrary screen-based programs
# on a remote machine
  ssh -t $USERNAME@IP $command
}

main