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Full Discussion: Help with Awk finding and replacing a field based on a condition
Top Forums Shell Programming and Scripting Help with Awk finding and replacing a field based on a condition Post 302519652 by joeyg on Wednesday 4th of May 2011 02:20:11 PM
Old 05-04-2011
Unsure of your problem
Your first command seems to have correct syntax.

Code:
$ cat sample5.txt
A|T|X|G
G|X|T|A
G|T|A|X

$ awk 'BEGIN {OFS=FS="|"} {if ($2=="T")sub($1,"T"); print }' sample5.txt
T|T|X|G
G|X|T|A
T|T|A|X

This User Gave Thanks to joeyg For This Post:
jghi123
 

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