topic Re: awk hack in Operating System - Linux

awk hack

lawrenzo_1 — Tue, 17 Jun 2008 11:53:02 GMT

Hello all,

I have written a bit of a hack but am sure I can get the desired output within one statement:

# netstat -rn |awk '/default/ {IP = $2};END{print IP}'|awk -F"." '{print $1"."$2}'

172.20

what is the best syntax for running this with one awk?

thanks

Chris

Re: awk hack

James R. Ferguson — Tue, 17 Jun 2008 12:01:19 GMT

Hi Chris:

# netstat -rn |awk '/default/ {split($2,a,".");print a[1]"."a[2]}'

Regards!

...JRF...

Re: awk hack

James R. Ferguson — Tue, 17 Jun 2008 12:14:13 GMT

HI (again) Chris:

It's worth remembering that you can set your output record seperator to write the solution thusly, too:

# netstat -rn |awk 'BEGIN{OFS="."};/default/ {split($2,a,".");print a[1],a[2]}'

Regards!

...JRF...

Re: awk hack

lawrenzo_1 — Tue, 17 Jun 2008 13:31:50 GMT

ok nice one James - thanks again