Matlab inherited environment when launched from command window

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.

Answer 1

[Image Analyst]

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)?

[Richard]

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]

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

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