BEGIN {
       printf "Bill for the 4-March-2001.\n"
       printf "By Vivek G Gite.\n"
       printf "---------------------------\n"
       }
{
    total = $3 * $4
    recno = $1
    item = $2
    gtotal += total
    printf "%2d %-10s Rs.%7.2f\n", recno, item, total
}

END {
     printf "---------------------------\n"
     printf "\tTotal Rs. %6.2f\n" ,gtotal
     printf "===========================\n"
}