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group lines

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aasislopez

IS-IT--Management
Aug 8, 2012
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Dear all,

I wonder how awk can order by group (first colum) and show only group(s) if all lines of the group have NOK as second field.

Input:
AND OK
AND NOK
AND NOK
VAL OK
VAL OK
VAL OK
MAD NOK
MAD NOK
MAD NOK

Output:
MAD NOK
MAD NOK
MAD NOK

Many thanks,

 
Your sample output doesn't match your stated requirements. By your own sample data, your output for all "NOK" in the second field should be:

AND NOK
AND NOK
MAD NOK
MAD NOK
MAD NOK

So, if this is truly the out put you desire...

root@linux:~# cat sort.txt | awk '$2 == "NOK"'
AND NOK
AND NOK
MAD NOK
MAD NOK
MAD NOK
 
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