notiufy x-display 0

#!/bin/bash
PATH=/usr/bin:/bin

XUSERS=($(who|grep -E "\(:[0-9](\.[0-9])*\)"|awk '{print $1$NF}'|sort -u))
for XUSER in "${XUSERS[@]}"; do
    NAME=(${XUSER/(/ })
    DISPLAY=${NAME[1]/)/}
    DBUS_ADDRESS=unix:path=/run/user/$(id -u ${NAME[0]})/bus
    sudo -u ${NAME[0]} DISPLAY=${DISPLAY} \
                       DBUS_SESSION_BUS_ADDRESS=${DBUS_ADDRESS} \
                       PATH=${PATH} \
                       notify-send "$@"
done