On Sun, 26 Dec 2010, S Mathias wrote:
> To: centos@xxxxxxxxxx
> From: S Mathias <smathias1972@xxxxxxxxx>
> Subject: whats wrong with my internet connection checker script?
>
> $ true && true || echo hi
> $ true && false || echo hi
> hi
> $ false && true || echo hi
> hi
> $ false && false || echo hi
> hi
> $ ping -W 1 -c 4 google.com >& /dev/null | grep -q "100% packet loss" && ping -W 1 -c 4 www.yahoo.com >& /dev/null | grep -q "100% packet loss" || echo "no internet connection"
> no internet connection
> $
> ping -W 1 -c 4 google.com >& /dev/null | grep "100% packet loss"
> $
> ping -W 1 -c 4 www.yahoo.com >& /dev/null | grep "100% packet loss"
> $
Would a bash script be more simple, rather than trying to do
all the piping stuff on one line?
Keith
--
In theory, theory and practice are the same;
in practice they are not.
This email was sent from my laptop with Centos 5.5
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