043-無限循環菜單

#!/bin/bash
while true 
do
clear
echo "---------------------"
echo "1.Display CPU info"
echo "2.Display system load:"
echo "3.Display Mem and swap info:"
echo "4.Display filesystem mount info:"
echo "5.Exit Program:"
echo "---------------------"
read -p "Please select an iterm(1-5):" Uss
case $Uss in
  1)
echo $(cat /proc/cpuinfo)
read -p "Please Enter to continue:"
;;
2)
echo $(uptime)
read -p "Please Enter to continue:"
;;
3)
echo $(free)
read -p "Please Enter to continue:"
;;
4)
echo "$(df -h)"
read -p "press Enter to continue:"
;;
5)
exit
;;
*)
read -p "Please select 1-5, Press Enter to continue:"
esac
done