#!/bin/bash

layouts=($(ls "$HOME/.screenlayout/"))

add="add layout..."

layouts+=("$add")

choice=$( printf '%s\n' "${layouts[@]}" | dmenu -i -p 'Choose a screenlayout:') "$@" || exit

if [ "$choice" = "$add" ]
then
  arandr &
else
  exec "$HOME/.screenlayout/$choice"
fi