Shell命令_case

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#!/bin/bash

# Author:James 2016-10-15

echo "want to output a,input 1:"

echo "want to output b,input 2:"

echo "want to output c,input 3:"

read -t 30 -p "please input your digit:" digit

case "$digit" in

        "1")

                echo "output a"

                #输出两个分号

                ;;

        "2")

                echo "output b"

                ;;

        "3")

                echo "output c"

                ;;

        *)

                #其它输入

                echo "output error,please input 1/2/2"

                ;;

esac