inotify_email_watcher.sh

#
# Monitor file $1 for changes
# Send an alert emai to $2 if file $1 changes
# usage: inotify_email_watcher.sh /var/log/messages your.name@domain.com
if [ -z "$2" ]; then
        echo "Usage: inotify_email_watcher.sh"
        exit 1
fi
# if the file exists
if [ -f $1 ] || [ -d $1 ]; then
# Checking if this file or directory is being monitored.
if [ $(ps aux | grep inotifywait | grep -c "$file" ) -gt '0' ]; then
echo "The file or directory is being monitored already: $(ps aux | grep inotifywait | grep "$file" ) ";
exit 1;
        fi
echo "Monitoring $1"
        inotifywait -m -r -e create,delete,modify,move,attrib $1 | while read FILE
        do
                echo "A change has been detected in $1"
                mail -s "A change has been detected in $1"  $2< /dev/null
done
else
        echo "File or directory $1 not found."
        exit 1
fi