Xrandr Display Configurator

#!/bin/bash

# Lists available ports (ones with something connected) in dialog
dialog --backtitle "Display Options" --radiolist "Select port:" 12 40 4 `xrandr | grep -w "connected" | sed 's/ .*//g' | awk '{print NR " " $0 " off"}' | sed ':a;N;$!ba;s/\n/ /g'` 2>/tmp/disp_port

# Sets relevant variables
number=`cat /tmp/disp_port`
EXT=`xrandr | grep -w "connected" | sed 's/ .*//g' | head -$number | tac | head -1`
IN="LVDS1"

# Lists display options
dialog --backtitle "Desktop Options" --radiolist "Select one:" 12 40 4 1 "Extend" on 2 "Clone" off 3 "Switch display" off 4 "Normal display" off 2>/tmp/disp_opt
disp_opt=`cat /tmp/disp_opt`

# Sets display option
if [ "$disp_opt" = 1 ]; then
xrandr --output $EXT --off --output $IN --auto &&
xrandr --output $IN --auto --output $EXT --auto --right-of $IN
elif [ "$disp_opt" = 2 ]; then
xrandr --output $EXT --off --output $IN --auto &&
xrandr --output $EXT --auto
elif [ "$disp_opt" = 3 ]; then
xrandr --output $EXT --off --output $IN --auto &&
xrandr --output $IN --off --output $EXT --auto
elif [ "$disp_opt" = 4 ]; then
xrandr --output $EXT --off --output $IN --auto
fi

clear
exit