Menghitung Diskon dalam Pembelian Barang

Buatlah file "diskon" yang berisi tabel seperti di bawah :

Barang	Jumlah	Harga satuan
CPU	7	5500000
Printer	5	1500000
Scaner	8	2700000
Monitor	10	3500000
Hardisk	6	1200000
Mouse	12	100000
Webcam	15	1000000

Gunakan rumus di bawah ini :

awk 'BEGIN{printf "%-10s %-10s %-10s %-10s %-10s %s\n",
"BARANG","JUMLAH","HARGA SATUAN","TOTAL","DISCOUNT",
"BAYAR"}
{if($2>=5 && $2 <10){printf 4="$2*$3,$5=" 6="$4-$5">=10){printf "%-10s %-10s %-10s %-10s %-10s %s\n", $1,$2,$3,$4=$2*$3,$5=0.2*$4,$6=$4-$5 }}' diskon