Как отобразить указатель после того, как он был спрятан программой очистки

Без примера вывода или поведения трудно дать точный ответ, но, похоже, вы ищете команду expect.

Справочная страница ожидаемое (1):

EXPECT(1)                   General Commands Manual                  EXPECT(1)



NAME
       expect - programmed dialogue with interactive programs, Version 5

SYNOPSIS
       expect [ -dDinN ] [ -c cmds ] [ [ -[f|b] ] cmdfile ] [ args ]

INTRODUCTION
       Expect  is a program that "talks" to other interactive programs accord‐
       ing to a script.  Following  the  script,  Expect  knows  what  can  be
       expected  from  a  program and what the correct response should be.  An
       interpreted language provides branching and high-level  control  struc‐
       tures  to  direct the dialogue.  In addition, the user can take control
       and interact directly when desired, afterward returning control to  the
       script.