在命令行脚本完成之前，如何阻止 MATLAB 返回？
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How can I stop MATLAB from returning until after a command-line script completes?
提问by Joseph Gordon
I see in the MATLAB help (matlab -h) that I can use the -rflag to specify an m-file to run. I notice when I do this, MATLAB seems to start the script, but immediately return. The script processes fine, but the main app has already returned.
我在 MATLAB 帮助 ( matlab -h) 中看到，我可以使用该-r标志来指定m要运行的-file。我注意到当我这样做时，MATLAB 似乎启动了脚本，但立即返回。脚本运行正常，但主应用程序已经返回。
Is there any way to get MATLAB to only return once the command is finished? If you're calling it from a separate program it seems like it's easier to wait on the process than to use a file or sockets to confirm completion.
有没有办法让 MATLAB 只在命令完成后返回？如果您从单独的程序中调用它，似乎等待进程比使用文件或套接字确认完成更容易。
To illustrate, here's a sample function waitHello.m:
为了说明，这里有一个示例函数waitHello.m：
function waitHello
disp('Waiting...');
pause(3); %pauses 3 seconds
disp('Hello World');
quit;
And I try to run this using:
我尝试使用以下方法运行它：
matlab -nosplash -nodesktop -r waitHello
回答by Brian Jorgensen
Quick answer:
快速回答：
matlab -wait -nosplash -nodesktop -r waitHello
In Matlab 7.1 (the version I have) there is an undocumented command line option -wait in matlab.bat. If it doesn't work for your version, you could probably add it in. Here's what I found. The command at the bottom that finally launches matlab is (line 153):
在 Matlab 7.1（我拥有的版本）中，matlab.bat 中有一个未公开的命令行选项 -wait。如果它不适用于您的版本，您可以添加它。这是我发现的。底部最终启动 matlab 的命令是（第 153 行）：
start "MATLAB" %START_WAIT% "%MATLAB_BIN_DIR%\%MATLAB_ARCH%\matlab" %MATLAB_ARGS%
The relevant syntax of the start command (see "help start" in cmd.exe) in this case is:
在这种情况下启动命令的相关语法（参见 cmd.exe 中的“帮助启动”）是：
start ["window title"] [/wait] myprogram.exe args ...
A bit higher, among all of the documented command line options, I found (line 60):
在所有记录的命令行选项中，我发现（第 60 行）更高一点：
) else if (%opt%) == (-wait) (
set START_WAIT=/wait
) else (
So specifying -wait should do what you want, as long as you're also exiting matlab from your script (otherwise it will wait for you to terminate it interactively).
所以指定 -wait 应该做你想做的，只要你也从你的脚本中退出 matlab（否则它会等待你以交互方式终止它）。
