Download list of zip data from .meta4 file extension

Hi, I have a .meta4 file that contain list of datasets that I want to download. The file contain with file name and url for data download.

Since, this is my first time working with .meta4 file, may I know if possible to run a matlab coding for download the data? if yes can somebody who expert in this provide me idea how to build and run the code.

[Sulaymon Eshkabilov]

I never worked with meta4 files. But a general advice is: check if your downloaded .meta4 file can be seen/opened using notepad or any other apps. If so, save as an .txt or .dat file, then you can read/process it using MATLAB.

[MAT NIZAM UTI]

Do you have any reference coding that I can look up for?

Answer 1

[Walter Roberson]

I find information that indicates that .meta4 files are XML files. As such you could potentially read them using xmlread or the fairly new readstruct

[MAT NIZAM UTI]

Here I attached the data/link arragement in the meta4 file. I already try the aria2c application using the cmd, but the downloaded file is not contain any information. So, I want to try if Matlab is possible to do this bulk-download from the meta4 file. May I know if you have any coding that can read this type of file that I can use to download all the data from the given url of this meta4 file?

[DGM]

It's probably safe to say that nobody has bespoke code ready for downloading files stored in a screenshot of a partial display of an XML file. If you want someone to wrangle XML on your behalf, attach the actual file, not a screenshot. The forum probably will be an obstacle in that effort, but you should be able to throw it in a zip file.

Otherwise, you have a file that's made to be fed to a downloader utility. Why not feed it to a downloader instead of trying to reinvent every wheel in MATLAB? In theory, this should be able to be handled by wget, but again, I don't have any files to test.

[MAT NIZAM UTI]

I do try download with a third party downloader. However, the retrieve data (.nc) is only 23kb where it should be 50-60MB. I am using aria2c. But there is an error to the download data. So, I need to try other sources like Matlab if there is a way to download all the data that have been listed in the metalink file (.meta4). I share to you the meta4 file.

[Walter Roberson]

My suspicion is that you are running into a credentials or field issue. I suspect that if you look at the 23 kb .nc file that you will find it is HTML giving some error message or refusal to download.