循環菜單腳本功能

循環菜單腳本功能

#!/bin/bash
#
cat <<!
1) 北京烤鴨
2) 佛跳牆
3）小龍蝦
4）羊蠍子
5）火鍋
6）點菜結束
!
sum=0
while read -p "請點菜(1-6): " MENU ;do
	case $MENU in
	1)
	    echo The price is 100
	    let sum+=100
	    ;;
	2)  
	    echo The price is 88
	    let sum+=88
	    ;;
	3)
	    echo The price is 66
	    let sum+=66
	    ;;
	4)
	    echo The price is 166
	    let sum+=166
	    ;;
	5)
	    echo The price is 200
	    let sum+=200
	    ;;
	6)
	    echo "點菜結束,退出"
	    break
	    ;;
	*)
	    echo "點菜錯誤，重新選擇"
	    ;;
	esac
done
echo sum=$sum