Unix Tip: PING THE HOST TABLE

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UNIX GURU UNIVERSE
UNIX HOT TIP

Unix Tip 3211 - November 21, 2009

http://www.ugu.com/sui/ugu/show?tip.today

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PING THE HOST TABLE

There's no need to grep and pipe the output into awk (you can "grep" with awk.)

awk '/^[0-9]/{print $1}' /etc/hosts |xargs -l ping -c 1 $1

This tip generously supported by: bmaclean@silverplatter.com

And another:

awk '/^[^#]/ {system("ping -c 1 "$1)}' < /etc/hosts

This tip generously supported by: maddox@xmission.com

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