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SET /P variable=[promptString]

The internal batch command
Set /P Variable=

makes it possible for a batch to request user data. Below is an extended menu example with input validation.

@Echo off
Rem =========================================================
Rem | This script is to demonstrate an user input and
Rem | validation routine with SET /P variable=[promptString]
Rem | (C) Copyright 2009 - 2024 J.P.G. van Soest (www.vansoest.it)
Rem =========================================================
:Jmp_Retry
Cls
Echo *********************************************************
Echo * Please specify the department number you belong to:
Echo * 1 - HRM
Echo * 2 - ICT
Echo * 3 - Sales
Echo *********************************************************
Echo .
Set /P Var_Department_nr=Department number :
Rem ***** Validate input by getting only first char and compare
If [%Var_Department_nr:~0,1%] NEQ [%Var_Department_nr%] Goto Jmp_Retry
If [%Var_Department_nr:~0,1%] LSS [1] Goto Jmp_Retry
If [%Var_Department_nr:~0,1%] GTR [3] Goto Jmp_Retry

Goto Jmp_Department_%Var_Department_nr:~0,1%

:Jmp_Department_1
Rem ***** Sub section HRM
Set Var_Department_name=HRM
Goto Jmp_End

:Jmp_Department_2
Rem ***** Sub section ICT
Set Var_Department_name=ICT
Goto Jmp_End

:Jmp_Department_3
Rem ***** Sub sectiOn Sales
Set Var_Department_name=Sales
Goto Jmp_End

:Jmp_End
Set Var_Message=Your Department is "%Var_Department_name%"
Echo %Var_Message%
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