从批处理脚本执行的WshShell命令 [英] execute WshShell command from a batch script

问题描述

我有一个简单的问题：

什么是从Windows批处理执行一个命令的WshShell的最佳方式（蝙蝠）脚本？

What's the best way to execute a single WshShell command from a Windows batch (.bat) script?

的（希望它不创造用VB code上新建一个文件）的

推荐答案

您可以通过VBScript或Jscript脚本访问的WshShell。既可以嵌入在批处理文件中，但JScript是干净多了。

You can access WshShell via VBScript or Jscript. Both can be embedded within a batch file, but JScript is much cleaner.

大多数人写的临时VBS文件的批处理内执行的VBScript。但它有可能做到这一点没有一个临时文件。请参见是否有可能嵌入和不使用临时文件的批处理文件中执行的VBScript？的各种选项。

Most people execute VBScript within batch by writing a temporary VBS file. But it is possible to do it without a temporary file. See Is it possible to embed and execute VBScript within a batch file without using a temporary file? for various options.

批次中嵌入JScript是很容易的。请参见 http://stackoverflow.com/a/5656250/1012053 。我使用该技术的一个非常微小的变化。

Embedding JScript within batch is quite easy. See http://stackoverflow.com/a/5656250/1012053. I use a very slight variation of that technique.

@if (@X)==(@Y) @end /* Harmless hybrid line that begins a JScript comment

:: ******* Begin batch code *********
@echo off
:: Your batch logic goes here

:: At any point you can execute the following to access your JScript
cscript //E:JScript //nologo "%~f0" yourJscriptParametersGoHere

:: Be sure to terminate your script so that 
:: it does not fall through into the JScript code
exit /b

********* Begin JScript code **********/
var WshShell=WScript.CreateObject("WScript.Shell")

/* do whatever with your WshShell object */

说明：

该技术的关键是第一行。它必须是一个具有有效的语法为JScript和批次线。

The key to the technique is the first line. It must be a line that has valid syntax for both JScript and batch.

批量看到第一行作为一个简单的IF命令总是计算为false，那么它永远不会执行不存在的@end命令，没有造成任何伤害。下面的几行都是正常批次code到达出口/ b，直到，在这一点批处理终止，其余行被忽略。

Batch sees the first line as a simple IF command that always evaluates to false, so it never executes the non-existent @end command, and no harm is done. The following lines are all normal batch code until exit /b is reached, at which point batch processing terminates and the remaining lines are ignored.

的JScript看到的第一行作为空条件编译块，随后是多行注释的开头。 JScript中忽略了下面的批处理code，因为它是注释的一部分。注释与 * / ，然后正常的JScript code如下：

JScript sees the first line as an empty conditional compilation block, followed by the beginning of a multi-line comment. JScript ignores the following batch code because it is all part of the comment. The comment ends with */, and then normal JScript code follows.

这可能失败的唯一的事情是，如果您的批处理code必须在它 * / ，因为这会pmaturely终止JScript的评论$ P $。但是，这可以通过将之间的事情来解决 * 和 / 批量解析后消失。如果code未报价，那么你可以简单地逃脱斜线如下： * ^ / 。如果code被引用，那么你可以扩展一个未定义的变量： *％=％/ 。命名的变量 = 保证不会被定义。

The only thing that could fail is if your batch code must have */ within it, because that would terminate the JScript comment prematurely. But that can be solved by putting something between the * and / that disappears after batch parsing. If the code is not quoted, then you can simply escape the slash as follows: *^/. If the code is quoted, then you can expand an undefined variable: *%=%/. A variable named = is guaranteed not to be defined.

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