How to upload a .mat file into Amazon s3

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

[Ameer Hamza]

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

[NANDITA SHARMA]

Thanks a lot @Ameer Hamza. this command "system('/usr/local/bin/aws s3 cp local_path cloud_path')" is working perfectly on MATLAB desktop app. But sir when i am using online MATLAB then how to specify the path of aws file.

Thanks in advance.

[Ameer Hamza]

The method using system command will only work on the local machine. MATLAB online does not have aws command-line tools. For MATLAB online, you might need to use the last option I described.

[VISHNUDAS V U]

Can you please tell how to obtain local_path and cloud_path .Like what will be its format with a simple example?