how to add empty filed to record

hi

i have record looks like below

1,US

I want to add empty field to the record as below

1, , , ,US

how i can do it using awk ?

i tried with awk its not working

awk '{ print $1", ,"$2 }' filename > file 1

Hi,

you need specify FieldSeparator:

awk -F, '{print $1", , , ,"$2}' filename > file 

or

awk -F, '{$1=$1;$5=$2;$2="";OFS=","}1'

Thanks albertogarcia its working !