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UGU: Unix Guru Universe - Unix Tip #4590- October 4, 2024 - Home : Help : Today's Tip
Unix Tip #4590- October 4, 2024

PING THE HOST TABLE


Here is a quick way to ping all the hosts in your host table.
NOTE: Just make sure that there are no blank lines in it, and
verify the ping command on your system exist after one ping. Your
mileage may differ slightly.

$ grep -v "#" /etc/hosts | awk '{print $1}' | while read host
> do
> ping -c 1 $host
> done

Or script it:

#!/bin/sh
grep -v "#" /etc/hosts | awk '{print $1}' | while read host
do
ping -c 1 $host
done



NOTE: All tips provided are USE AT YOUR OWN RISK. Tips are submitted by various unix admins around the globe. UGU suggest you read and test each tip in a non-volitile environment before placing into production.


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