Perl的运行命令@echo没有找到一个批处理文件 [英] Perl running a batch file @echo command not found

问题描述

我在Windows上使用先生并允许任何后运行之前任意命令/库行动。至于我可以看到这是通过调用Perl的系统函数简单地完成。然而事情似乎很错了我的设置：当制作先生运行下面的批处理文件，位于D：

I am using mr on Windows and it allows running arbitrary commands before/after any repository action. As far as I can see this is done simply by invoking perl's system function. However something seems very wrong with my setup: when making mr run the following batch file, located in d:

@echo off
copy /Y foo.bat bar.bat

我得到最基本的Windows错误命令：

I get errors on the most basic windows commands:

d:/foo.bat: line 1: @echo: command not found
d:/foo.bat: line 2: copy: command not found

要确保先生是没有问题的，我跑的perl -e'系统（D：/foo.bat），但输出是一样的

To make sure mr isn't the problem, I ran perl -e 'system( "d:/foo.bat" )' but the output is the same.

使用XCOPY，而不是拷贝，似乎xcopy命令被发现，因为输出现在

Using xcopy instead of copy, it seems the xcopy command is found since the output is now

d:/foo.bat: line 1: @echo: command not found
Invalid number of parameters

不过，我不知道什么可能是错误的参数。我想也许这个问题是批处理文件还没有完全进入标准的命令环境，所以我尝试通过的perl -e明确运行它的系统（CMD /cd:\\foo.bat）' 但这只是开始cmd并没有运行命令（我不得不退出命令行，回到一个我在那里）。

However I have no idea what could be wrong with the parameters. I figured maybe the problem is the batch file hasn't full access to the standard command environment so I tried running it explicitly via perl -e 'system( "cmd /c d:\foo.bat" )' but that just starts cmd and does not run the command (I have to exit the command line to get back to the one where I was).

什么是错在这里？详细解释将是巨大的。此外，我该如何解决这个问题？我preFER离开该批处理文件是一个解决方案。

What is wrong here? A detailed explanation would be great. Also, how do I solve this? I prefer a solution that leaves the batch file as is.

推荐答案

回声指令由运行命令提示符实例直接执行。
但Perl是的 推出一个新的进程 的与你的命令。你需要一个cmd实例中运行你的脚本，这些命令工作。

The echo directive is executed directly by the running command-prompt instance. But perl is launching a new process with your command. You need to run your script within a cmd instance, for those commands to work.

您 CMD / C 必须工作。检查您是否有您所提供给它的路径中有空格。
您可以使用的传递参数​​参数化的方式，

Your cmd /c must work. Check if you have spaces in the path you are supplying to it. You can use a parametrized way of passing arguments,

@array = qw("/c", "path/to/xyz.bat");
system("cmd.exe", @array);

回声指令是的不可以的可执行文件，因此，它的错误了。
同样是的复制命令也是如此。它的不可以的可执行文件，而 XCOPY.EXE 是

The echo directive is not an executable and hence, it errors out. The same is true of the copy command also. It is not an executable, while xcopy.exe is.

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