目录式巡检脚本 case版

#! /bin/bash

clear

echo "-----------------------menu----------------"

echo "1)show time"

echo "2)CPU load"

echo "3)Memory Free"

echo "0)Exit"

echo "-------------------------------------------"

echo -n "Entern you chose[0-3]:"

read NUM

case $NUM in

1) echo "`date +%T`";;

2) echo "`uptime | awk  '{print $8}'`";;

3) echo "`free | awk '$1=="Mem:"{print $4}'`";;

0) exit;;

*) echo "basename $This is not between 1 and 3";;

esac