#!/bin/bash
#-------choose------------
echo -n "Are you the super user? "
read answer
case "$answer" in
  "[Yy][Ee][Ss]" | "[Yy]" ) 
     echo "Enjoy administering the system"
     ;;
  "[Nn][Oo]" | "[Nn]" ) 
     echo "Enjoy using the system"
     ;;
    *)
     echo "Invalid reply"
     ;;
esac