用另一个蝙蝠文件中的变量创建一个蝙蝠文件 | 用另一个蝙蝠文件中的变量创建一个蝙蝠文件

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问题描述

我想用另一个bat文件中的设置变量创建一个bat文件。
用于启动 .bat 文件，该文件映射网络驱动器并将某些文件复制到本地计算机，并查看需要运行的系统服务。

每次登录.bat文件运行时，它还需要创建一个日志文件。这是我所做的一个示例。

  ECHO set SERVER IP =>> V：\GENESIS\ GENESIS INSTALL FILESLogGenesisLogonUser.bat 
 ECHO set DRIVE1 = V>> V：; GENESIS\GENESIS INSTALL FILES\GenesisLogonUser.bat 
 ECHO set MAPDRIVE1 = \\ ％SERVER IP％\v / P：是> V：\GENESIS\GENESIS安装文件\GenesisLogonUser.bat 
 ECHO净使用％DRIVE1％：％MAPDRIVE1％> ％userprofile％\Documents\scripts\logonlog.txt>> V：\GENESIS\GENESIS安装文件\GenesisLogonUser.bat

解决方案

您需要避免变量的百分比扩展。这可以通过将批处理脚本中的每个％符号加倍来完成：

 设置 VAR =值 
回声%% VAR %%

这将回显：

请注意，这不能直接在控制台窗口中使用；您需要改为：

 >设置 VAR = Value 
 
> ; echo ^％VAR ^％
％VAR％

因此将其应用于您的脚本时，它看起来像这样（我从转义中排除了％USERPROFILE％，因为我不知道您是否喜欢它；当然您也可以写 %% USERPROFILE %% ）：

  （
 ECHO设置为 SERVER IP = 
 ECHO设置为 DRIVE1 = V 
 ECHO设置为 MAPDRIVE1 = \\ %% SERVER IP %% \v / P：是 
 ECHO净使用率%% DRIVE1 %%：%% MAPDRIVE1 %%> ^>％USERPROFILE％\Documents\scripts\logonlog.txt 
）>  V：\GENESIS\GENESIS安装文件\GenesisLogonUser.bat

重定向到回显的文本中，需要像 ^> ^> 这样转义。

括号内的所有 ECHO 命令，仅需要一个重定向操作；

此外，我改进了 set 语法，以便放置整个赋值表达式放在一对引号之间，这样可以抵抗特殊字符（引号不会成为值的一部分）。

I want to create a bat file with set variables from another bat file.This is for a startup .bat file that maps network drives and copies some files to the local computer and looks at the system services that needs to run.

It also needs to create a log file every time the logon .bat file runs. Here is a sample what I have done.

ECHO set SERVER IP=>>"V:\GENESIS\GENESIS INSTALL FILES\GenesisLogonUser.bat"
ECHO set DRIVE1=V>>"V:\GENESIS\GENESIS INSTALL FILES\GenesisLogonUser.bat"
ECHO set MAPDRIVE1=\\%SERVER IP%\v /P:Yes>>"V:\GENESIS\GENESIS INSTALL FILES\GenesisLogonUser.bat"
ECHO net use %DRIVE1%: %MAPDRIVE1% >>"%userprofile%\Documents\scripts\logonlog.txt">>"V:\GENESIS\GENESIS INSTALL FILES\GenesisLogonUser.bat"

解决方案

You need to escape percent expansion of the variables. This can be done by doubling each % sign in a batch script:

set "VAR=Value"
echo %%VAR%%

This will echo:

Note that this does not work directly in the console window; you need to do it like this instead:

>set "VAR=Value"

>echo ^%VAR^%
%VAR%

So to apply this to your script, it looks like this (I excluded %USERPROFILE% from the escaping as I do not know how you like it; of course you could write %%USERPROFILE%% instead as well):

(
    ECHO set "SERVER IP="
    ECHO set "DRIVE1=V"
    ECHO set "MAPDRIVE1=\\%%SERVER IP%%\v /P:Yes"
    ECHO net use %%DRIVE1%%: %%MAPDRIVE1%%^>^>"%USERPROFILE%\Documents\scripts\logonlog.txt"
) > "V:\GENESIS\GENESIS INSTALL FILES\GenesisLogonUser.bat"

Since there is some redirection in the echoed text, this needs to be escaped like ^>^>.

I also put all ECHO commands within parentheses, which requires a single redirection operation only; this improves legibility and performance.

In addition, I improved the set syntax so that the entire assignment expression is placed in between a pair of quotation marks, which make it robust against special characters (the quotes do not become part of the value).

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