Downloading a zip file from a website and not having it download as a html file

I'm attempting to dowload the zip files from https://www.ncdc.noaa.gov/orders/qclcd/ using websave. I need the weather data from january 2017 to december 2017 which are at the bottom of the webpage. In order to download them I made a loop

url = 'https://www.ncdc.noaa.gov/orders/qclcd/';
%filename = 'QCLCD201701.zip';
%outfilename = websave(filename,url)



for i= 1:12
    
    filename = sprintf('QCLCD2017%02d.zip', i);
    outfilename = websave(filename,url);
    %unzip(filename)
end

this loop changes the last two digits of the file name to download each months weather data since the files end in 01, 02, 03, etc.

The problem is when I use the websave function these files are saved as html links to the same webpage and I am unable to unzip the files to get to the txt files inside.

Please help I'm very new to matlab.

Answer 1

[Image Analyst]

In the loop, shouldn't you be changing the URL to download and save different files? You are not changing the URL so you save the same thing 12 times. You need to change the URL just like you're changing the filename to save to.

[Image Analyst]

Thomas's comment moved here:

in what way should i be changing the loop though? just curious im not sure what changing the url would do .

[Image Analyst]

Try this:

webFolderURL = 'https://www.ncdc.noaa.gov/orders/qclcd/';
for k = 6 : 12
	thisURL = sprintf('%s1996%2.2d.tar.gz', webFolderURL, k)
	baseFileName = sprintf('QCLCD2017%02d.zip', k);
	fullFileName = fullfile(pwd, baseFileName)
	try
		outputFileName = websave(fullFileName, thisURL) % Throws error if not found.
		% The URL was found if you get here.  If not, it goes to the catch.
		fprintf('SUCCESS: Downloaded %s to %s \n', thisURL, outputFileName);
	catch ME
		% That URL was not found
		fprintf('FAILED: URL %s was not found!\n', thisURL);
	end
end