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awk related query

 
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# 1  
Old 05-22-2008
Question awk related query
hi,

I have to extract a column from a file and then updated that column..??

Now i can use wak for extracting it and then how to update it..

$ awk' {print $5}' input_file

Can i use sed command here piping it to the output from the awk command..
# 2  
Old 05-22-2008
Hi

U can do like

awk '{ $5="test remaing part...}' filename

when u change a field value awk recomputes the whole $0 again and thus updates ur values

Thanks
Penchal
# 3  
Old 05-22-2008
Hi,

Use '~' to match the values,
The one liner will be:

awk '{if($5~"Hi") $5="bye"; print}' input_file


Regards,
Vinod.
 
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