run matlab function with arguments on linux terminal

Hello, do you have any idea how to run matlab functions from the linux shell specifying their arguments? what i tried was: { matlab -r myfunction(argument1,argument2) } but it doesn't work oO

[Yekaterina Gilbo]

Hi Ayoub, what is the purpose of the "-r" and also how do you know what to even type on the terminal (what should I look up for this?) Thanks!

[Walter Roberson]

"-r" followed by something indicates that MATLAB should take what follows as a command to run.

https://www.mathworks.com/help/matlab/ref/matlablinux.html

Answer 1

[Walter Roberson]

matlab -r 'myfunction(argument1,argument2)';

Or safer:

matlab -r 'try myfunction(argument1,argument2); catch; end; quit'

Answer 2

[Thomas]

Adding to Walter's answers above..

you could also try

matlab -r -nodisplay -nojvm 'myfunction(argument1,argument2)';

-no display removes the Xdisplay and -nojvm starts matlab without hte Java virtual machine.

you could also try

matlab -r -nodesktop -nojvm 'myfunction(argument1,argument2)';

or use the abovewith the try-catch loop as suggested by Walter..

Answer 3

[USMAN]

I would rearrange the sequence of input arguments as follows:

matlab -nodisplay -nojvm -r 'FunctionName Arg1 Arg2; exit;'

exit will also exit Matlab and bring control back to shell

[Patrik Ek]

Which is the only way to use the -r argument. Good add!

Answer 4

[Ayoub]

thankyou guys :)

Answer 5

[Martina Audagnotto]

Hi,

I have a similar question regarding running matlab with arguments on linux terminal. I want to run my matlab code on GPU and if I set the number of GPU manually the code run, while if i give the number of GPU as a variable of my function I get the following error:

Not enough input arguments.

This is how I run the function:

matlab -nodesktop -r "nodes=2; averaging_filament='single_filament_averaging_reikaparam_is40'; folder='polarity_TRIAL'; run streamline_tomo_GPU.m" ;

and inside the code:

GPU=[nodes];

No idea why is it not running :(

[Walter Roberson]

I recommend converting streamline_tomo_GPU into a function with nodes as its parameter. Alternately, convert

GPU=[nodes];

to

GPU=evalin('base','nodes');

[Lucademicus]

According to the matlablinux documentation, you should not use the option

-r

but instead use the option

-batch

I've tested this on MATLAB R2018b.

The command

matlab -nodisplay -nojvm -r 'somefunction(someargument); anotherfunction(anotherargument);'

did not run anotherfunction(). It did when I changed -r to -batch!

[Walter Roberson]

-batch is a new option as of R2019a. -r still works.