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Date: Sat, 27 Mar 2010 19:26:10 -0500
From: Kevin Kinsey <kdk@daleco.biz>
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To: Jozsef Vadkan <jozsi.avadkan@gmail.com>
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Cc: FreeBSD Mailing list <freebsd-questions@freebsd.org>
Subject: Re: "internet connection tester script"
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Jozsef Vadkan wrote:
> Why doesn't my "internet-connection" script work?
> 
> When I plug the ethcable out, it just waits...and waits...and waits...
> 
> The script: http://pastebin.com/AE9U1qdL

As someone has noted, you're waiting on ping to timeout a bunch
of times.  And really, I'm not sure why this script is needed.
In ~/.cshrc:

alias up	ping -t3 yahoo.com

  ... or something (your .bashrc equivalent, or .shrc, etc.)
should do the trick, with much less effort on all fronts.

HTH,

Kevin Kinsey