Input environment variable into script to run different values automatically

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In-chan Kim
In-chan Kim 2020-5-27
回答： Image Analyst 2020-5-27
Hi, I'm running a matlab script on a different server, and I want it to automatically input a value into a script, so that I can run it once, and have different versions of the scrips running independently.
I know that if I use something called an environment variable, it will work, I just don't know how!
From the server side of things:
#PBS -J 1-5
matlab -nodesktop -nosplash -nodisplay < RunHPC_parallel${PBS_ARRAY_INDEX}s.m
And that will make it
RunHPC_parallel1s.m, RunHPC_parallel2s.m ... RunHPC_parallel5s.m
I need to be able to make the J feed into my script and adjust a value within my script.
Specifically, the J in
formparams=form2params(J,:);
I think it's something to do with this: ${PBS_ARRAY_INDEX}
But not sure how!
Thanks!

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Image Analyst
Image Analyst 2020-5-27
You can get the environment variable inside your program with getenv().
Description
example
value = getenv(name) searches the operating system environment variable list for text of the formname=value.
On UNIX® platforms, the shell you use to start MATLAB® determines the operating system environment. For example, starting MATLAB on a Mac platform from the Applications folder creates a different shell environment from starting MATLAB from Terminal.

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