i have a file like :
File1
var1,var2,var3
var4,var5,var6
var7,var7,var8
.
.
.
$3 : var3,var6,var8, may be null in this file so when it's nul i get the information from a function serach () which return $var i want to print it in $3
i do like that :
awk -F "," '{ {first=$1; sec=$2; tro=$3 }
if (tro == "")
{
search ( parametre)
{print $1","$2","$var} }
else
{print $1","$2","$3 }}' $file1 > $file
but i doesn't print $var in $file.
any help please