Running Matlab .m file with arguments in a bash script

Question

I have a Matlab .m file that takes three input arguments:

calculate('input.txt','Alex','output.txt')

I would like to run this .m file in a shell script as follows:

matlab -nodisplay -nodesktop -r "run calculate('input.txt','Alex','output.txt)"

Unfortunately, this did not work. I get the following error:

Error using run (line 70)

calculate('input.txt','Alex','output.txt') not found.

Any pointer as to how I can give the input arguments/variables?

Thanks.

Note: The following did not work either - complaining too many arguments.

matlab -nodisplay -nodesktop -r "run calculate input.txt Alex output.txt"

Luis Mendo · Accepted Answer · 2018-06-19 15:15:17Z

3

I think you just need to remove run. run is for scripts, not for functions (and anyway it's not necessary unless you need to specify the script's path). So, try

matlab -nodisplay -nodesktop -r "calculate('input.txt','Alex','output.txt')"

If your function calculate is not in Matlab's path, change to its folder first. For example

matlab -nodisplay -nodesktop -r "cd 'c:\users\Alex\SomeFolder'; calculate('input.txt','Alex','output.txt')"

edited Jun 19, 2018 at 15:15

answered Feb 3, 2015 at 17:59

Luis Mendo

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9 Comments

user3131944 Over a year ago

Thanks for the reply. I modified as you suggest. Now I get the following error: Undefined function 'calculate' for input arguments of type 'char'. ps: Typing in both ways works fine in the command line.

Luis Mendo Over a year ago

That's probably because calculate is not in Matlab's path. Put it in some folder Matlab sees by default (any folder included in path)

user3131944 Over a year ago

I tried this and did not work: -r "addpath('/path-to-m-file/'; calculate('input.txt','Alex','output.txt')"

Luis Mendo Over a year ago

It should be "addpath('/path-to-m-file/'); calculate('input.txt','Alex','output.txt')" (missing ))

Luis Mendo Over a year ago

Try matlab -nodisplay -nodesktop -r "addpath '/some/folder'; disp('test');" and see if that works

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