#!/bin/bash
#
cat << EOF
cpu) show cpu information;
mem) show memory information;
disk) show disk information;
quit) quit
#############################################################
EOF
read -p "Enter a option:" option
while [ "$option" != 'cpu' -a "$option" != 'mem' -a "$option" != 'disk' -a "option" != 'quit' ];do
read -p "Wrong option,please Enter again:" option
done
if [ "$option" == 'cpu' ];then
lscpu
elif [ "$option" == 'mem' ];then
cat /proc/meminfo
elif [ "$option" == 'disk' ];then
fdisk -l
else
echo "Quit"
exit 0
fi
~
