loan

#!/bin/bash -e
echo -n '元金を入力してください: '
read amount
echo -n '借入期間を10日単位で入力してください: '
read term
awk "BEGIN { loan = 1
             for(i = 0; i < ${term} / 10; i++) { loan *= 1.1 }
             loan *= ${amount}
             print \"返す金額は\" loan \"円です。\" }"