I have the following matlab script, called test.m:
disp('Hello')
error('Oooops')
I run it from bash, using:
matlab -nodisplay -nodesktop -nosplash -r "try; cd <the appropriate folder>; test ; catch; end; quit"
The output is
Hello
In other words, I do not manage to get the error text from the bash
You are catching the error, without doing anything with the encountered error. Instead, catch the exception and display it. In a script/function this would look like:
try
someNonExistingFunction()
catch ME
disp(ME)
end
Which will display the following:
ME =
MException with properties:
identifier: 'MATLAB:UndefinedFunction'
message: 'Undefined function or variable 'someNonExistingFunction'.'
cause: {}
stack: [0×1 struct]
Correction: []
When calling from bash, you could do this:
matlab -nodisplay -r "try; someFunction(); catch ME; disp(ME); end; quit"
This will make sure that you do see the error message (and the line the error occured if you display ME.stack), but allows to execute the last quit statement.
If you are using MATLAB R2019b, use the new -batch command line option:
matlab -batch "cd <the appropriate folder>; test"
or
( cd <the appropriate folder> ; matlab -batch test )
With this option it is no longer necessary to catch errors and explicitly call exit, MATLAB exits after the given statement is finished. It also avoids loading the desktop, always writing output to stdout and stderr.
