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thejitha@ubuntu:~$ awk --version
awk: not an option: --version

Hi scrutinizer,

Thank you very much for your help. When I use a~/[A-Z]/ I got the correct result.


---------- Post updated at 03:43 AM ---------- Previous update was at 03:31 AM ----------...

Hi Jotne,

I used a~/[A-Z]/

I got the correct result. Thank you very much.

Hi scrutinizer,

I tried your suggestion. But there is no change in the result.

My OS is ubuntu 12.04.


thejitha@ubuntu:~/Desktop$ awk '{print substr($0, 14, 4)}' thejitha
M
A
K
M G
L
E S
E S
E
thejitha@ubuntu:~/Desktop$ awk '{print substr($0, 17,...

Thank you for your reply. I did with the example which I gave. But I get the same result.

Hi Jotne,

I tried your code . I don't get the output like you. I got the following output. All the characters in the 5th column are changing in to C.


1 1 B M C 0 0 203 ...

I have some files that look as follows. I need to add a character 'C' in the fifth column if that column is blank. I prefer in-place editing.
1 1 B M 0 0 203 0, 0.0 ...