Launching-matlab-in-background-correctly-in-linux

You want to launch Matlab for a very long script and then disconnect your remote terminal, and when back, not finding bad surprise.

Suppose your script myeigenvalues.m is:

    A=randn(1000);
    X=eig(A);
    save

1. Create a helper script helper_myegeinvalues.m that launches myeigenvalues.m script but surrounded by a try-catch block like this:

    try
        myeigenvalues;
    catch ME
        disp(ME);
        disp('SCRIPT CRASHED');
        exit;
    end
    disp('SCRIPT RUNNED SUCCESSFULLY');

The try-catch block is needed to avoid leaving Matlab open in idle status if an error occurred once launched as background process.

1. Create another helper bash-script file helper_myegeinvalues.sh that runs the script helper_myegeinvalues.m

    matlab -nodisplay -nodesktop -nosplash -r "helper_myegeinvalues"

1. Make the helper_myegeinvalues.sh file executable by issuing

    chmod +x helper_myegeinvalues.sh

1. Run the helper_myegeinvalues.sh as a nohup command and collect all the output into the file stdout.txt

    nohup ./helper_myegeinvalues.sh > stdout.txt &

1. You can now leave the process run and stay happy.