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

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.

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

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

chmod +x helper_myegeinvalues.sh

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 &