如何从命令行调用MATLAB并在退出之前打印到stdout [英] How to call MATLAB from command-line and print to stdout before exiting

问题描述

在运行以下命令时，MATLAB打印输出

matlab -nodisplay -nojvm -rfprintf（1，'value：％f \ n'，2.0）; quit;

*注意：我目前运行的版本是7.10.0.499（R2010a）64位）

解决方案

如 -logfile 选项将所有输出的副本复制到文件中

  matlab -nodisplay -nojvm -logfile out.txt -rfprintf（1，'value：％f \\\
 '，2.0）; quit; 
  

在 Windows ，请使用 -wait 命令行选项阻止脚本的执行，直到MATLAB关闭。

在 Unix ，您可以使用 sleep 5s 睡眠5秒钟，或使用 wait 命令暂停执行，直到进程完成：

 ＃！/ bin / sh 
 matlab -nodisplay -logfile out.txt -rrand（3），quit
 wait $（ps | grep matlab | awk'{print $ 2}'）&&& cat out.txt 
  

I'm trying to run MATLAB scripts from command-line and am having problems getting MATLAB to return results to stdout.

When running the following command, MATLAB prints the license banner and exits without printing the message.

matlab -nodisplay -nojvm -r "fprintf(1, 'value: %f\n', 2.0); quit;"

*note: I am currently running Version 7.10.0.499 (R2010a) 64-bit (maci64)

解决方案

As was shown in this related post, you can use the -logfile option to make a copy of all outputs to a file.

matlab -nodisplay -nojvm -logfile out.txt -r "fprintf(1, 'value: %f\n', 2.0); quit;"

On Windows, use the -wait command-line options to block the execution of your script until MATLAB closes.

On Unix, you can use sleep 5s to sleep for 5 seconds, or use the wait command to pause execution until the process finishes:

#!/bin/sh
matlab -nodisplay -logfile out.txt -r "rand(3), quit"
wait $(ps | grep matlab | awk '{print $2}') && cat out.txt

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