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UGU: Unix Guru Universe - Unix Tip #4617- November 1, 2017 - Home : Help : Today's Tip
Unix Tip #4617- November 1, 2017

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



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.


LAST 5 TIPS
4616 - USES FOR AWK
4615 - PERL FIND AND REPLACE
4614 - BE ALARMED
4613 - NUMBERING A FILE
4612 - BACKING UP FILES


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