#!/usr/bin/sh
Xaxis=$(xrandr --current | grep '*' | uniq | awk '{print $1}' |  cut -d 'x' -f1)
Yaxis=$(xrandr --current | grep '*' | uniq | awk '{print $1}' |  cut -d 'x' -f2)
MaxRes=$(($Xaxis))"x"$(($Yaxis))
echo $MaxRes
exit 0