runs a command as another user with current users x server

lendx

#!/bin/bash

selfBaseName=$(basename -- "$(readlink -f -- "$0")")
usage="Usage: ${selfBaseName} <username> <command>"

if test $# -ne 2; then
     echo $usage
     exit
fi

user=$1
cmd=$2

xhost +SI:localuser:$user
pkexec --user $user env DISPLAY=$DISPLAY XAUTHORITY=$XAUTHORITY $cmd
xhost -SI:localuser:$user

works with zsh, toss in /usr/local/bin or equivalent