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Looking for first instance of an error in explorer log

 
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# 1  
Old 12-10-2014
Tools Looking for first instance of an error in explorer log
Hi

How to see the first instance of an error in explorer log ?

In this case I want to know the first time error "SCSI transport failed" was populated in messages

Thanks

Amani
# 2  
Old 12-10-2014
Quote:
Originally Posted by amani
Hi

How to see the first instance of an error in explorer log ?

In this case I want to know the first time error "SCSI transport failed" was populated in messages

Thanks

Amani
Probably a rookie answer here, but if you're talking just scanning for the first error in a given log file, I've used this logic successfully in the past:

Code:
 
LN=`grep -n "<error>" <log_file> | head -1 | nawk -F: '{print $1}'`
let LNe=$LN+5
head -$LNe  <log_file> | tail -10

so drop in "SCSI transport failed" for "<error>" and put your log file in there and it'll rip out 10 lines (5 before and 5 after) around the error.
This User Gave Thanks to Ditto For This Post:
amani
# 3  
Old 12-11-2014
A bit more context would be helpful. Is that a system log file? Is it rotated regularly, so earlier files might be zipped/compressed? Then you need to specify at what point in time your search should start, and take respective action.
 
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