awk related query

abhisek.says · #1 (**permalink**) 05-22-2008

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..

penchal_boddu · #2 (**permalink**) 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

vguleria · #3 (**permalink**) 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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