Issues executing bash commands from matlab (windows 10)

Hello all,

I have a question very similar to this one, regarding executing bash commands from the matlab command-line.

For context, I'm using MATLAB R2019a (9.6.0.1150989 Update 4) on Microsoft Windows 10 Pro Version 10.0.19041 Build 19041

The command I'm trying to execute is

! bash -c c:/nrn/bin/mknrndll

This gives me the output

      0 [main] sh 20084 sync_with_child: child 20888(0x244) died before initialization with status code 0xC0000142
 848356 [main] sh 20084 sync_with_child: *** child state waiting for longjmp
c:/nrn/bin/mknrndll: fork: Resource temporarily unavailable

When I start bash from the windows start menu (by typing in bash and pressing enter), I can cd to the folder in question and execute

bash-4.4$ c:/nrn/bin/mknrndll

which produces the expected output (a compiled .dll file from a bunch of .mod files, and some other extrania).

I can execute

! bash -c ls

from inside MATLAB without problems and recieve the expected output.

On closer inspection, this probably isn't strictly speaking a MATLAB issue because I get the same error if I first open cmd.exe, then start bash, then cd, then try mknrndll I get the same error from as within Matlab. Nevertheless, does anyone have any ideas what's going on here (and are there any other ways of executing a sh script on windows via Matlab?)

[Rik]

The general idea with the command line from Matlab is that you should make sure your script runs as expected without any user interaction.

So you need to find a way to queue commands. It looks to me like you can simply queue the cd and your call with the normal bash syntax.