#!/bin/bash
if [ -n "$1" ]; then
        USER="$1"
fi

if [ "$USER" = "" ]; then
	exit 0
fi

x=$(who | awk "/$USER/"'{print $1}')
if [ -z "$x" ]; then
	mount | awk -F ' on ' "/$USER/"'{print $2 }' | awk -F ' type ' '{ cmd = "umount -l " $1; system( cmd ) }'
fi