matlab script in batch from unix command line?

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Lester Ingber
Lester Ingber 2020-5-5
评论： Walter Roberson 2020-5-5
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?
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jessupj
jessupj 2020-5-5
编辑：jessupj 2020-5-5
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(${ARG1}); quit"
this way, i could put a switch between matlab and octave (depending on which machine i was using) and not have different *.m files for each.
Walter Roberson
Walter Roberson 2020-5-5
When using -r I recommend adding a try/catch:
matlab -nodisplay -nosplash -r "try; addpath(${ARG2}); function(${ARG1}); catch ME;end; quit"

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