shell case

認識case結構

[root@localhost test]# cat 5.sh

#!/bin/bash

read -t 5 -p "Please input a number: " n

m=$[$n%2]

case $m in

        1)

        echo "The number is jishu."

        ;;

        0)

        echo "The number is oushu."

        ;;

        *)

        echo "It is not jishu or oushu."

        ;;

esac