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#!/bin/bash

## Author : TaxKiz
## Email  : taxkiz@gmail.com

export PATH='/bin:/sbin:/usr/bin:/usr/sbin'

## NUM='3 5 7'
NUM=$*

## 检查输入的数字个数是否为 3 个
function CT () {
    [ $# != '3' ] && echo " Please Enter 3 Number ! " && exit 1
}

CT $NUM

## 个位数列表
NT='1/2/3/4/5/6/7/8/9'

## 检查输入的数字是否为个位数
function CK () {
    for num in $*
    do
        [ $num == '0' ] && echo "Error Number '$num'" && exit 2
        echo $NT | grep "\b$num\b" > /dev/null 2>&1
        [ $? != '0' ] && echo "$num is not a single digit" && exit 3
    done
}

CK $NUM

## 判断是否有重复的数字
function SN () {
    if [ $1 == $2 ] || [ $1 == $3 ] || [ $2 == $3 ]; then
        echo "ERROR! There have same number : '$*'"
        exit 4
    fi
}

SN $NUM

## 大喊一声
function GO () {

    A1=$1
    A2=$2
    A3=$3

    T1=$(( $1 * $2 ))
    T2=$(( $1 * $3 ))
    T3=$(( $2 * $3 ))

    TA=$(( $1 * $2 * $3 ))

    for num in {1..100}
    do
        echo $num | grep $A1 > /dev/null 2>&1
        [ $? == '0' ] && echo 'Fizz' && continue

        echo "scale=2; $num/$TA" | bc | grep 00 > /dev/null 2>&1
        [ $? == '0' ] && echo 'FizzBuzzWhizz' && continue

        echo "scale=2; $num/$T1" | bc | grep 00 > /dev/null 2>&1
        [ $? == '0' ] && echo 'FizzBuzz' && continue

        echo "scale=2; $num/$T2" | bc | grep 00 > /dev/null 2>&1
        [ $? == '0' ] && echo 'BuzzWhizz' && continue

        echo "scale=2; $num/$T3" | bc | grep 00 > /dev/null 2>&1
        [ $? == '0' ] && echo 'FizzWhizz' && continue

        echo "scale=2; $num/$A1" | bc | grep 00 > /dev/null 2>&1
        [ $? == '0' ] && echo 'Fizz' && continue

        echo "scale=2; $num/$A2" | bc | grep 00 > /dev/null 2>&1
        [ $? == '0' ] && echo 'Buzz' && continue

        echo "scale=2; $num/$A3" | bc | grep 00 > /dev/null 2>&1
        [ $? == '0' ] && echo 'Whizz' && continue

        echo $num

    done
}

GO $NUM