Awk script

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Original Message

Name: Prasanna
Date: April 5, 2006 at 03:44:57 Pacific
Subject: Awk script
OS: XP
CPU/Ram: Pentium
Model/Manufacturer: Intel

Comment:

I have 4 columns in a record. sometimes the 2nd & 3rd column happens to be a NULL.for those records with 2nd & 3rd column is null the $2 of AWK takes the 4th not null column. I don't want the awk to behave this way. How do I go about in this case.

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Response Number 1

Name: nails
Date: April 5, 2006 at 07:45:05 Pacific

Reply: (edit)

A null column means an undefined column. Therefore, you can't say your record has 4 columns if one of them is null. awk has a field seperator, FS, variable that you might be able to use.

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