#!/bin/bash


. /etc/os-release


COLOR="\e[1;32m"
COLOREND="\e[0m"
MEM_SIZE=`free -h|grep 'Mem'|awk '{print $2}'`
USER=张渐佳
HOSTNAME=`hostname`
IP=`ip a |grep 'ens160'|grep -Eo '((25[0-5]|2[0-4][0-9]|1[0-9]{2}|[1-9]?[0-9])\.){3}(25[0-5]|2[0-4][0-9]|1[0-9]{2}|[1-9]?[0-9])'|head -n1`
KERNEL=`uname -r`
CPU=`cat /proc/cpuinfo |grep 'model name'|head -n1 |awk -F ": " '{print $2}'`
DISK=`lsblk |grep 'disk'|awk 'BEGIN {OFS="\t"} {print $1,$4}'`

echo "请选择一个选项："
select menu in USER HOSTNAME IP OS-RELEASE KERNEL CPU MEM_SIZE DISK QUIT ;do
    case $menu in
        "USER")
            echo ${USER}
	    	;;
        "HOSTNAME")
            echo ${HOSTNAME}	
	    	;;
        "IP")
            echo ${IP}
	   	 ;;
        "OS-RELEASE")
            echo ${NAME} ${VERSION}
	   	 ;;
       	"KERNEL")
		echo ${KERNEL}
		;;
	"CPU")
		echo ${CPU}
		;;
	"MEM_SIZE")
		echo ${MEM_SIZE}
		;;
	"DISK")
		echo ${DISK}
		;;
	"QUIT")
		 echo "退出选择";
           	 break
		;;	
   	 *)
            echo "无效的选择，请重试"
	    ;;
    esac
done