MATLAB: How to upload a .mat file into Amazon s3

Question

I have stored my data into .mat file and want to upload it into Amazon s3 cloud using MATLAB. I can upload it using command prompt using "aws s3 cp local_path cloud_path" command but can't using MATLAB. So how to upload the file using MATLAB.

Answer 1

You can use API to write the data: https://www.mathworks.com/help/matlab/ref/webwrite.html, but that can get complicated for AWS S3.

The easiest solution might be just to use the system() function: https://www.mathworks.com/help/matlab/ref/system.html. You can just run the shell command from MATLAB

system('aws s3 cp local_path cloud_path')

However, note that it does not use the same $PATH variable as your default shell. You will need to use setenv() to add another directory to $PATH variable, or you will need to specify the complete path to aws binary, for example

system('/usr/local/bin/aws s3 cp local_path cloud_path')

There seem to be some options for uploading the file using MATLAB too: https://www.mathworks.com/help/matlab/import_export/work-with-remote-data.html