sudo watch bash -c 'lsof | grep media'

#!/bin/bash
# Automatic Disk Drive Mount On Folder Access
# Written by Andreas Tobola, Oktober 2015, http://tnotes.de
# Scrip must be run as root to access all open files by any process

FOLDER='/home/actor/media/black'

OPEN_FILES=`lsof +d $FOLDER -b -t | wc -l`

if [ "$OPEN_FILES" -gt "0" ]; then
	echo 'Folder open'
else
	echo 'Folder closed'
fi

echo 'end'