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simple script to alert if internet not working?

From: fuzzylogic25
Subject: simple script to alert if internet not working?
Date: Sun, 13 Jun 2010 18:53:48 -0700 (PDT)


I am constantly automaticaly downloading a few things on the internet but
since my internet connection is unstable, it sometimes wont work. Thing is
the internet will appear to be connected, but no website can be accessed and
no program can successfully connect to any location. I can fix this issue
once detected by turning adsl modem off and on.

So I want to write a program that detects this. So say, every 5 minutes,
checks to see if internet works. I was thinking it would prob just run
something like "ping www.google.com" every 5mins and if it doesnt work (ie
if it cant get any information from google), it will run some file (like a
mp3, to alert me).

Problem is ping keeps gettin data requests nonstop from looks of it. so how
would i go about doing this? i have never done shell scripting so i dont
really know how? if anyone could help me with a solution that would be
great. I am using cygwin under win xp.
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