"not recognized as an internal or external command, operable program or batch file"

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alpedhuez 2020-5-31

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评论： Image Analyst 2020-6-6

I ran

clear all
pp=gcp('nocreate');
[~,numproc]=system('nproc','-echo');
numproc=str2double(numproc)-1;

it turns on Matlab 2019a but I got a following error message at 2019b

"'nproc' is not recognized as an internal or external command,

operable program or batch file."

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回答（1 个）

Dinesh Yadav 2020-6-3

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I think your operating system is Windows on which MATLAB is installed therefore its not recognizing the command 'nproc' as its a linux system based command. I tired the above code in MATLAB in both Windows 10 and Debian 10. Windows one showed the same error and Debian one gave the correct output.