Hi All,

I have a data file (myfile.txt) as below:

Code:

- A  H        C
- A  HHH    F
- AAA  HH   I

The importan point is that the width between the columns are not fixed and the column seperator is space.

I wish to change the value of 4th column using awk only when $3 = HH. I can achieve this with following command.

Code:

awk '$2=="AAA" && $3=="HH" {$4="IJ" } 1' myfile.txt

However, the output format is changing to below:

Code:

- A  H      C
- A  HHH    F
- AAA HH IJ

How do I maintaint the output format same as input format?

Thanks
Angshuman