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Shell Programming and Scripting

Encryption of card number

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# 8  
Old 08-06-2009
No panyam that's not working it does not encrypt at all then
Please suggest at your convenient time
# 9  
Old 08-06-2009
Quote:
Originally Posted by mad_man12
the above code is not working and not encrypting.
You keep using that word. I do not think it means what you think it means.

It is not encrypting the data, it is destroying the data. Perhaps you mean obscuring? I hope so, since there's no way to get it back once that's done except by having an unobscured copy somewhere else.
# 10  
Old 08-07-2009
The code , that i posted working fine for me.

Let me know where you have the issue.
# 11  
Old 08-10-2009
Thanks
Thanks Panyam that works fineSmilie
# 12  
Old 08-12-2009
replace only if the item is numeric
Hi Panyam,
I need to replace or encrypt card only if the item here ($i+12) is numeric
how do i check that
# 13  
Old 08-12-2009
A further enhancement to the script :

Code:
awk -F":" '
BEGIN {OFS=":"}
$0 ~/\+DEF/ {
for(i=1;i<=NF;i++)
{
if($i=="+DEF")
{
        if( $(i+12) ~ /[^0-9]/ )
        {
        next;
        }
        else
        {
        if(length($(i+12))>=15)
                {
                $(i+12)=substr($(12+i),1,4)"******"substr($(12+i),11,16)
                }
        }
}
}
}1' file_name.txt
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