Watchdog script

[WoPr]

Hi all!

I need to make a program to control a file. If the file have a 0, the the process do nothing, but if the file have a 1, the process will execute a script.

Is there anyway to have a watchdog process or something like that?

Thanks in advance :)

[jordilin]

#!/bin/bash

while [ 1 ]
do
NUM=`cat dog.txt`
if [ $NUM == "0" ]
then
echo "hello"
elif [ $NUM == "1" ]
then
echo "bye"
else
echo "nothing"
fi
sleep 2
done

You could put this in a cron job and remove the sleep and while. If you wanna learn bash scripting I would go to The linux documentation project (http://www.tldp.org)

[WoPr]

It works like a charm! :)

Thanks and best regards!!

[lswb]

You may also be interested in these and similar packages: dnotify and inotify-tools.