stat compare on directory

stat_compare

#!/usr/bin/env bash

DIR_TO_CHECK='./'

OLD_STAT_FILE='./old_stat.txt'

if [ -e $OLD_STAT_FILE ]
then
        OLD_STAT=$(cat $OLD_STAT_FILE)
else
        OLD_STAT="nothing"
fi

NEW_STAT=$(stat -t $DIR_TO_CHECK)

if [ "$OLD_STAT" != "$NEW_STAT" ]
then
        echo 'Directory has changed. Do something!'
        # do whatever you want to do with the directory.
        # update the OLD_STAT_FILE
        echo $NEW_STAT > $OLD_STAT_FILE
fi