How to run Matlab script with parameters using "nohup" to run in background, detached from the terminal (Redhat)

I have a script that has a function which take in 3 positional arguments. If I use

matlab -nodisplay -nojvm

to get the matlab terminal and then use below inside the MatLab terminal

myscript . dataset_name False

I could make it run.

But this is problematic as this is a long running program in a remote server, and I cannot guarantee a stable internet connection to keep the tunnel open. Therefore I want to

1. Run this as a single command in Linux terminal itself
2. Detach the process from the terminal, and run in background, prefereably similar to how we do when we run a Python script in using the terminal. Which is:

nohup python myscript.py > experiment.log 2>&1 &

So to do this first I need to address the point 1, and then 2. So far I have tried out the below answer but it didn't work for me:

matlab -nodisplay -nosplash -nojvm -nodesktop -r "myscript . dataset_name False"

Gives: Not enough input arguments. Error in myscript. "fprintf('Base directory: %s\n',base_dir);" 

Here base_dir is the first argument. I have tried out putting "'" around the arguments but didn't work.

Answer 1

[Walter Roberson]

Scripts do not accept any input parameters, so you must be using a misleadingly named function.

Try

matlab -nodisplay -nosplash -nojvm -nodesktop -r "myscript('.','dataset_name', 'False')"

[Savindi]

Thank you for the support. However, I have tried this version as well, but that gave me:

.../bin/matlab: eval: line 1780: syntax error near unexpected token `)'
.../bin/matlab: eval: line 1780: `exec ".../bin/glnxa64/MATLAB"  -nodisplay -nosplash -r 'myscript('"'"'.'"'"','"'"'dataset_name'"'"',' 'False') -nodesktop -nojvm'

Also the amount of apostrophes in the error looks a bit weird to me.

To handle the above I have tried this StackOverflow answer and this MatLab community answer, but did not work for me.

To give bit more infromation, I am running the script from the root directory where the myscript.m is. As you inferred, the function is named as same as the script and that is why I could pass the arguments.

[Walter Roberson]

You seem to have switched to ' quoting instead of " quoting, and got the quoting wrong for the 'False' . If you follow the pattern you were using you would have needed

".../bin/glnxa64/MATLAB"  -nodisplay -nosplash -r 'myscript('"'"'.'"'"','"'"'dataset_name'"'"',' '"'"'False'"'"') -nodesktop -nojvm'

[Savindi]

Sorry I think I didn't quite understand. Did you mean I have switched to ' quoting instead of " quoting inside the script?

[Walter Roberson]

The answer I posted was to use

matlab -nodisplay -nosplash -nojvm -nodesktop -r "myscript('.','dataset_name', 'False')"

which uses " " quotes around the myscript() call, and uses ' ' quoting of individual strings.

The error message you posted was

.../bin/matlab: eval: line 1780: `exec ".../bin/glnxa64/MATLAB"  -nodisplay -nosplash -r 'myscript('"'"'.'"'"','"'"'dataset_name'"'"',' 'False') -nodesktop -nojvm'

which shows that ' quoting was used, together with elaborate schemes to introduce ' quotes.

[Savindi]

[Walter Roberson]

Create a script that contains

fiber_analysis_pipeline('.', 'RT05', 'False');

now

system("nohup matlab -nodisplay -nosplash -nojvm -nodesktop -r 'NameOfThatScript' 2>&1 &")