#!/bin/bash
#notify_xloggedbash    kelloco2@gmail.com
#Notifies X logged-in users or login manager
#Requires libnotify
#todo sort -u -k1,1 (if who show duplicates)
#example: notify_xloggedbash gpm-battery-100 "Currently using batteries"
icon=$1
notification=$2
numxlogged=`who | grep "(:.*)" | wc -l`

if [ $numxlogged -ge 1 ]; then
        for (( n=1; $n <= $numxlogged; n++ )) ; do
                xlogged=`who | grep "(:.*)" | awk '{ print $5 " " $1 }' | sed -n "$n"p`
                display=${xlogged:1:2}
                user=`echo $xlogged | awk '{ print $2 }'`
                env DISPLAY=$display su $user -c "notify-send -i \"$icon\" \"$notification\""
        done
else
        #Uncomment to notify login manager (does not always work, lxdm work, lightdm don't work)
        #sleep 4 && env DISPLAY=:0 notify-send -i "$icon" "$notification"
        exit 0
fi