#!/bin/bash

#using the case command

case $USER in
    tiandi | barbar)
        echo "Welcome, $USER"
        echo "Pleas enjoy your visit" ;;
    testing)
        echo "Special testing account" ;;
    jessica)
        echo "Do not forget to logout when you are out" ;;
    *)
        echo "Sorry, you are not allowed here" ;;
esac