directory-changed-listener
This is a bash script that listens for a change in a given directory or any of its subdirectories. When one is noticed, it runs another bash script (in which you do whatever you want to do).
Compatability
It has only been tested on Mac OS X 10.7, but should work on most Linux-based systems.
How to use it
To start it
To run it on Mac OS X, you'll first need to open up Terminal.
If you have the listener script at "~/Sites/directory-changed-listener/dirListener.sh", you would type the following:
cd ~/Sites/directory-changed-listener
sh dirListener.sh /dir/to/listen/to
Alternatively, if you want to move the script to the root of the directory you want to listen to, once you have moved it there, you would type the following:
cd /dir/to/listen/to
sh dirListener.sh
That is, if you don't feed the script its first parameter (a directory to listen to), it assumes you want to listen to the one in which it resides.
To stop it
Simply type:
CTRL + c
To make it do your bidding
You'll need to edit the dirChanged.sh file to perform whatever action you want at the time a directory change is noticed. For example, maybe you want to send an email because an intruder has hacked into your files! Whatever it is, this is the file where you work your magic.
Important note:
You must keep the dirChanged.sh file in the same directory as the dirListener.sh file. The listener fires off dirChanged.sh when a directory change is noticed.