#!/bin/bash

opcao=0
while [ $opcao -ne 4 ]
do
echo "====MENU==="
echo "1 - Mostrar data"
echo "2 - Mostrar usuario"
echo "3 - Informe seu nome"
echo "4 - Sair"

read opcao
case $opcao in
1)
date
;;

2)whoami
;;

3) echo " Digite Seu Nome: "
read nome
echo "Oi, $nome!"
;;
4) echo "Encerrando..."
;;

*) "Opção invalida"
esac
   echo
done

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