DOS批处理:命令行和拖放之间的行为不同 [英] DOS batch : Different behaviour between command line and drag and drop

问题描述

我正在尝试在文件中写入命令行的第一个参数，但是它可以在命令行中使用，而不能通过拖放操作来实现.

I'm trying to write the first argument of a command line in a file, but it works in command line and not with drag and drop.

非常简单的批处理文件(test_echo.cmd)如下:

The very simple batch file (test_echo.cmd) is as following:

@echo OFF
echo %1 > echo_arg_in_file.txt`

在命令行上，

C:\rep>test_echo.cmd "C:\rep\fichier de test.txt"`

创建一个文件echo_arg_in_file.txt，其中将"C:\rep\fichier de test.txt"写入其中.

creates a file echo_arg_in_file.txt with "C:\rep\fichier de test.txt" written inside.

但是通过将文件"C:\rep\fichier de test.txt"拖放到批处理文件上，没有任何反应...(删除> echo_arg_in_file.txt的测试之前已经完成，并且显示得很好"C:\rep\fichier de test.txt")

But with a drag and drop of the file "C:\rep\fichier de test.txt" on the batch file, nothing happens... (the test to delete > echo_arg_in_file.txt was done before and displays well "C:\rep\fichier de test.txt")

有什么解释吗?

推荐答案

我不确定您的精确环境，但是如果我敢打赌，当前的活动目录就是问题

I'm not sure about your precise environment, but if I have to bet, current active directory is the problem

用

@echo off
    for %%a in (.) do echo %%~fa
    pause

然后通过双击文件和拖放文件来执行文件.在这两种情况下，您都将看到已启动的cmd进程的当前活动目录.

Then execute the file both by double clicking it and by drag/drop a file. In both cases you will see the current active directory for the started cmd process.

为什么这样有意义?由于您没有在原始文件重定向中包含路径，因此将在当前活动目录中创建此文件，这可能不是您期望的.

Why is this relevant? As you have not included a path in the original file redirect, this file will be created in the current active directory that, maybe, could not be what you expect.

您可以在此处

要获得快速解决方案，

@echo OFF
> "%~dp0\echo_arg_in_file.txt" echo %1

将在与保存批处理文件的文件夹相同的文件夹中创建文件

that will create the file in the same folder that hold the batch file

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