matlab script in batch from unix command line?

I have a problem with Octave:

x = dlmread('fin');
y = transpose(x);
z = fft(y);
w = ifft(z);
dlmwrite('fout',w,' ');

fin is real, but fout is complex with all data have very small imaginary parts. This seems to be a known bug:

https://savannah.gnu.org/bugs/?45932

Matlab does not have this problem with this same code. However, while I can create a script to run fine as a batch job in Octave, I cannot do this in Matlab? For example, the first line in an Octave script is

#!/opt/octave/bin/octave -qf

but I have not been able to find the Matlab counterpart. For example,

#!/opt/matlab/2018a/bin/matlab

just puts me into Matlab instead of running the script. I have tried various flags that might be like Octave's "-qf" without success?

[Lester Ingber]

I do note that I did find a comment that this is not possible, in

https://www.mathworks.com/matlabcentral/answers/479672-how-to-run-batch-file-in-matlab

[Walter Roberson]

#!/opt/matlab/2018a/bin/matlab -nodesktop

Perhaps

[Lester Ingber]

No, that does not work, nor does "-batch", "-nodisplay -nosplash", etc.

XSEDE is now using matlab/2019b/

[jessupj]

it's not graceful, but i've done this using commands in the shell, e.g. using the matlab '-r' in version up to 2018a.

i know that's not what you're asking for, but i didn't every try to call matlab functions as shell functions.

ARG1=$(some shell commands)
ARG2='/home/user/mfiles'  # directory containing function.m
matlab -nodisplay  -nosplash -r "addpath(${ARG2}); function(${ARG1}); quit"

the equivalent for octave was something like

octave --no-gui --eval  "addpath(${ARG2}); function(${ARG1}); quit"

this way, i could put a switch between matlab and octave (depending on which machine i was using) and not have different *.m files for each.

[Walter Roberson]

When using -r I recommend adding a try/catch:

matlab -nodisplay  -nosplash -r "try; addpath(${ARG2}); function(${ARG1}); catch ME;end; quit"