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insert a separator in a file

 
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Sergio Tancredi
Occasional Advisor

insert a separator in a file

I have a file:
0123456780
8999999998
I want insert a separator in last field:

012345678,0
899999999,8.

How ?

Thanks in advance.
2 REPLIES 2
Robin Wakefield
Honored Contributor
Solution

Re: insert a separator in a file

Hi Sergio,

sed 's/.$/,&/' {filename}

should do it.

Robin.
Sergio Tancredi
Occasional Advisor

Re: insert a separator in a file

Very good Robin,thanks.