print only tnsping errors (example no listener) not successful resolving

From: Sven Aluoor <aluoor@xxxxxxxxx>
To: oracle-l@xxxxxxxxxxxxx
Date: Thu, 10 Feb 2011 14:53:49 +0100

Hi folks

I made the command:

for i in `grep 'SID' /opt/webimr/params | awk '{ print $3 } '`; do
tnsping $i ; done

it gives me huge output (because over 600 instances), but I am only
interested in errors (not successful resolved). Howto filter all
errors out?

cheers Sven
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Follow-Ups:
- Re: print only tnsping errors (example no listener) not successful resolving
  - From: Radoulov, Dimitre

Other related posts:

» print only tnsping errors (example no listener) not successful resolving - Sven Aluoor
» Re: print only tnsping errors (example no listener) not successful resolving- Radoulov, Dimitre