如何让2个CMD窗口相互“交谈”？(How to get 2 CMD windows to 'talk' to each other?)

 我可能错过了正确的词汇来更简洁地谈论这个问题所以请原谅我，如果我在这里有点罗嗦。 在Windows 10下我有一个在CMD命令提示符下运行的程序它是一个名为OpenSim的可执行文件，它有自己广泛的命令集，包括'shutdown'，它启动其中进程的正常终止，关闭SQL连接等，最后关闭CMD命令窗口。 我还有一个CMD .bat文件，当电源关闭时由我的UPS激活，当然会打开它自己的窗口，然后在关闭硬件之前做一些内务处理。 我希望.bat文件做的一件事是以某种方式将'shutdown'命令插入到另一个窗口的进程中。 那可能吗？ 如果是这样，怎么样？ 请假设我是一个全新的人，你不会走错路。 谢谢。 
 
 
 
 编辑看起来创建一个文件来标记发生的关闭事件是唯一（并且我猜相当原始）的方式来做到这一点。 因此，基于其他人在stackoverflow中所说的内容，我现在有以下内容。 当我运行它来测试它等待 - 它没有。 它一直运行到最后，运行'shutdown'，即使UPSFLAG.TXT文件不存在。 出了什么问题？ 
 
 
echo Waiting for UPS Power Down Signal.
echo =================================
@ECHO OFF
SET LookForFile="C:\Opensim OSGrid\UPSFLAG.TXT"

:CheckForFile
IF EXIST %LookForFile% GOTO FoundIt

REM If we get here, the file is not found.

REM Wait 10 seconds and then recheck.
REM If no delay is needed, comment/remove the timeout line.
TIMEOUT /T 10 >nul

GOTO CheckForFile


:FoundIt
ECHO Found: %LookForFile%
rem Tidy up
del "C:\Opensim OSGrid\UPSFLAG.TXT"
shutdown

I am probably missing the right vocabulary to talk about this problem more succinctly so excuse me if I'm a little wordy here. Under Windows 10 I have a program that runs inside a CMD command prompt It's an executable called OpenSim and it has it's own extensive command set, including 'shutdown', which initiates a graceful termination of the processes therein, closes SQL connections etc, then finally closes the CMD command window. I also have a CMD .bat file that is activated by my UPS when the power goes down that will of course open it's own window, and then does some housekeeping before closing down the hardware. One thing I want the .bat file to do is to somehow insert a 'shutdown'command into the other window's process. Is that possible? If so, how? Please assume I am a total newbie at this and you won't go far wrong. Thank you.
 
 
 
EDIT It looks like creating a file to flag the closedown event taking place is the only (and I guess rather primitive) way to do this. So, building on what others have said in stackoverflow, I have the following now. When I run it to test it waits - it doesn't. It runs right through to the end, running 'shutdown', even though the UPSFLAG.TXT file does not exist. What's going wrong?
 
 
echo Waiting for UPS Power Down Signal.
echo =================================
@ECHO OFF
SET LookForFile="C:\Opensim OSGrid\UPSFLAG.TXT"

:CheckForFile
IF EXIST %LookForFile% GOTO FoundIt

REM If we get here, the file is not found.

REM Wait 10 seconds and then recheck.
REM If no delay is needed, comment/remove the timeout line.
TIMEOUT /T 10 >nul

GOTO CheckForFile


:FoundIt
ECHO Found: %LookForFile%
rem Tidy up
del "C:\Opensim OSGrid\UPSFLAG.TXT"
shutdown

原文：https://stackoverflow.com/questions/44504808