Matlab inherited environment when launched from command window

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Richard 2024-7-30

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/2141626-matlab-inherited-environment-when-launched-from-command-window

评论： Image Analyst 2024-7-31

采纳的回答： Image Analyst

It has been my experience that Matlab inherits the dos environment when launched from a command window (or powershell).

e.g. open Command Prompt

c:\Users\Foo> matlab

This does in fact work on 2 laptops Win10 and Win11. On a 3rd Win11 laptop however it does not seem to work. I did some workarounds within Matlab to get past that but I also found when I execute dos .bat from Matlab on that 3rd laptop, The dos window opened does not have the env from the original that I used to launch Matlab.

Is there a workaround? My searches came up dry.

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Answer 1

Image Analyst 2024-7-31

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https://ww2.mathworks.cn/matlabcentral/answers/2141626-matlab-inherited-environment-when-launched-from-command-window#answer_1492946

在 MATLAB Online 中打开

What information from the DOS environment do you need?

Have you tried getenv?

I guess you're doing, from the command window in MATLAB:

>>!dos.bat

to execute dos.bat via a system call. Or are you doing

>>run('dos.bat')

or

>>system('dos.bat')

or

>> winopen('dos.bat')

What ODS commands are in the batch file you're trying to run? Can you attach it with the paperclip icon (you might have to zip it up)?

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Richard 2024-7-31

I found a workaround by using setenv and getenv within Matlab. Some of the commands were python and I was trying to avoid using pyenv. I ended up using pyenv as well to setup python. Once you call penv(...) it remembers that setup forever which has the potential to crowbar other users on shared computers.

Image Analyst 2024-7-31

I'm glad getenv and setenv worked for you. 🙂

If this Answer solves your original question, then could you please click the "Accept this answer" link to award the answerer with "reputation points" for their efforts in helping you? They'd appreciate it. Thanks in advance. 🙂 Note: you can only accept one answer (so pick the best one) but you can click the "Vote" icon for as many Answers as you want. Voting for an answer will also award reputation points.

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