问题描述
我想有一个典型的用法：行，我的cmd.exe 脚本＆MDASH;如果一个参数丢失，用户给出的剧本是如何简单的提示被使用。
I like to have a typical "usage:" line in my cmd.exe scripts—if a parameter is missing, user is given simple reminder of how the script is to be used.
问题是，我不能安全地predict潜在用户是否会使用GUI或CLI。如果使用GUI有人双击这个脚本在资源管理器窗口，他们不会有机会读任何东西，除非我暂停窗口。如果他们使用CLI，暂停会打扰他们。
The problem is that I can't safely predict whether potential user would use GUI or CLI. If somebody using GUI double-clicks this script in Explorer window, they won't have chance to read anything, unless I pause the window. If they use CLI, pause will bother them.
所以我在寻找一种方法来检测它。
So I'm looking for a way to detect it.
@echo off
if _%1_==__ (
echo usage: %nx0: filename
rem now pause or not to pause?
)
是否有能力，从一个批处理脚本中，检测到这一点，并在命令窗口prevent自动关闭？
推荐答案
您可以检查％CMDCMDLINE％变量的值。它包含了用于启动的cmd.exe 命令。
You can check the value of %CMDCMDLINE% variable. It contains the command that was used to launch cmd.exe.
我prepared测试.bat文件：
I prepared a test .bat file:
@Echo Off
echo %CMDCMDLINE%
pause
当从内打开的cmd.exe 窗口，脚本版画C：\\ WINDOWS \\ SYSTEM32 \\ cmd.exe的跑。
当通过双击运行，它打印 CMD / CC：\\用户\\ MBU \\桌面\\ test.bat的
When run from inside of open cmd.exe window, the script prints "C:\Windows\system32\cmd.exe".When run by double-clicking, it prints cmd /c ""C:\Users\mbu\Desktop\test.bat" "
所以要检查你的脚本是通过双击你需要检查，如果％CMDCMDLINE％包含路径到脚本启动。最终的解决方案是这样的：
So to check if your script was launched by double-clicking you need to check if %cmdcmdline% contains the path to your script. The final solution would look like this:
@echo off
set interactive=1
echo %cmdcmdline% | find /i "%~0" >nul
if not errorlevel 1 set interactive=0
rem now I can use %interactive% anywhere
if _%1_==__ (
echo usage: %~nx0 filename
if _%interactive%_==_0_ pause
)
编辑：实施了注释中讨论的问题的变化修正;编辑例子来说明它们
implemented fixes for issues changes discussed in comments; edited example to demonstrate them
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