how to access zip files in the directory?

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sandy 2013-9-5

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https://ww2.mathworks.cn/matlabcentral/answers/86408-how-to-access-zip-files-in-the-directory

hi ..example.if i have a folder name as 'DATA',inside this subfolder namely A TO Z are ther..in this each folder(A TO Z),many .zip files are ther..i need to fetch all the .zip files inside main folder('DATA'),and extract them to a separate folder.is it possible? any defined function?

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Laurent 2013-9-5

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Using the 'dir'-command you can obtain a list of files.

In your case you could use something like:

filelist=dir('DATA/*.zip');

filelist=dir('DATA\*.zip');

depending on your OS.

Then filelist will be a struct in which filelist.name has the filenames.

'unzip' can then be used to unzip your files.

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sandy 2013-9-16

编辑：sandy 2013-9-16

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this is the code i checked for my case,its not working

   folder ='F:\test folder\';
for kk=2000:2013
  if exist(folder,'dir')
    for ll=1:12
      if exist(folder,'dir')
         for mm=1:31
             currfold=[folder(mm) '\*.zip'];
             currfiles=dir(currfold);
            for jj=1:length(currfiles)
                unzip([folder(ii) '\' currfiles(jj).name],outputfolder);
            end
         end
      end
    end
  end
 end

Laurent 2013-9-16

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You are always using 'folder' and are not adding the year, month or date, when you check if they exist. I would change it in something like this:

Be aware that I did not check this code, so there could be small errors/mistakes, but I hope you get the idea.

for kk=2000:2013
  yearfolder=[folder num2str(kk) '\'];
  if exist(yearfolder,'dir')
    for ll=1:12
      monthfolder=[yearfolder num2str(ll) '\'];
      if exist(monthfolder,'dir')
         for mm=1:31
            currfold=[monthfolder num2str(mm) '\'];
            if exist(currfold,'dir')
              currfiles=dir([currfold '*.zip']);
              for jj=1:length(currfiles)
                unzip([currfold '\' currfiles(jj).name],outputfolder);
              end
            end
         end
      end
    end
  end
 end