Re: text substitution in a colum

Hi,

You might find awk a more suitable tool for what you would  like to do.

Thanks


On Mon, 26 Nov 2012 15:05:49 +0100
"MOKRANI Rachid" <[email protected]> wrote:

> Hi,
>  
> This is my firts port.
>  
> I have a file with colum like this.
>  
> Title1    Title2      Title3       Title4
> AA          B            66             D
> BB          DS          7              TT
> VS          FDSE     53             TGF
> BG          F            5               GF 
>  
> I would like to have with a sed command the following result. Add the
> character MY_ before all numbers in the colum number 3 and preserve
> the title "Title3". All the colums are seaprate by a tab.
>  
> Title1    Title2    Title3    Title4
> AA         B         MY_66      D
> BB         DS       MY_7       TT
> VS         FDSE   MY_53      TGF
> BG         F          MY_5       GF 
>  
>  
>  
> Many thanks for your help/example.
>  
> Regards.
>  
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