CentOS - Mar 2011 - Watching a directory

Hi All,

I am thinking about an idea, but it requires that I be able to watch several
directories for files that are added, deleted or maybe changed.

Let start with adding files. What tools are available for me to watch a
directory. In an example, if a file is added to a directory I want to run a
shell script that will do some conversation on the file to produce a second
copy.

I have the shell scripting down, I am not sure how to watch, realize change
and kick off the script with the parameters of the directory and what was
added.

Would anyone have thoughts?

-Jason


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On Wed, 16 Mar 2011, Jason Slack-Moehrle wrote:
> Would anyone have thoughts?
don't reinvent the wheel

inotify builds and works fine on CentOS 5

-- Russ herrold

on 14:06 Wed 16 Mar, Jason Slack-Moehrle (slackmoehrle.lists at gmail.com)
wrote:
> Hi All,
> 
> I am thinking about an idea, but it requires that I be able to watch
several
> directories for files that are added, deleted or maybe changed.
> 
> Let start with adding files. What tools are available for me to watch a
> directory. In an example, if a file is added to a directory I want to run a
> shell script that will do some conversation on the file to produce a second
> copy.
> 
> I have the shell scripting down, I am not sure how to watch, realize change
> and kick off the script with the parameters of the directory and what was
> added.
> 
> Would anyone have thoughts?
make

-- 
Dr. Ed Morbius, Chief Scientist /            |
  Robot Wrangler / Staff Psychologist        | When you seek unlimited power
Krell Power Systems Unlimited                |                  Go to Krell!

> Let start with adding files. What tools are available for me to watch a
directory.
> In an example, if a file is added to a directory I want to run a shell
script that
> will do some conversation on the file to produce a second copy.
I just was working on something like this today - yum search inotify -
here's a nice intro with an example close to what I'm using:

https://github.com/rvoicilas/inotify-tools/wiki/#info (inotifywait example 1)

I used -e create -e modify -e delete instead of -e close_wait - see the man page
for events.

Very slick so far.

Josh