#!/usr/bin/ksh

ValUniqueNo=0
export ValUniqueNo

FnGenerateUniqueNo()
{
(( ValUniqueNo = $ValUniqueNo + 1 ))
echo $ValUniqueNo
export ValUniqueNo=$ValUniqueNo
}

echo k1=`FnGenerateUniqueNo`
echo k2=`FnGenerateUniqueNo`

kindly consider the above script.
it is required that when the function is called value of ValUniqueNo should be incremented.

Can any body help me...