#!/bin/bash
echo "--- Un-Mount NAS Shares ---"

#values
user="mussterman"
mnt_root="/home/$user/.mnt/NAS/"


echo -n "Tpye in Passwort: "; read -s passwd; echo

echo; echo;

[ -z "`mount | grep /home/$user/.mnt/NAS/`" ] && {
  echo Not Mounted Jet
  exit 0
}

echo "$passwd" | sudo -p "Unmount All: " -kS umount /home/$user/.mnt/NAS/* && echo OK

sleep 3