Batch : Checking the number of parameters

Question

I\'d like to make sure that when calling my batch, no more than 2 parameters are passed.

Is there an easy way to check that, or do I have to call SHIFT as many times as

Answer 1

Here is my small example for gathering and parsing a list of arguments and passing to external command:

@echo off
setlocal enabledelayedexpansion

if %1. EQU . (
    echo %~0 [-t NUM] FILE [FILE...]
    goto end
)

:args_loop
if "%~1" EQU "-t" (
    set arg_t=%1
    set arg_t_val=%2
    shift
) else (
    set files=!files! %1
)
shift
if %1. NEQ . goto args_loop

:args_loop_end

x:\path\to\external.exe %arg_t% %arg_t_val% %files%

:end