How to use dir function with customized number of folders (2024)

p = dir('C:\Username\myfolder');

dateStringFromFilename = regexp({p.name}.','\d{2}-\d{2}-\d{4}','match','once');

fileDatetimes = datetime(dateStringFromFilename,'InputFormat','dd-MM-yyyy');

fileDatetimes = datetime([p.datenum],'ConvertFrom','datenum');

tStart = datetime(2019,08,01);

tEnd = datetime(2019,09,10);

idx = isbetween(fileDatetimes,tStart,tEnd);

result = p(idx);

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rootfolder='C:\Username\myfolder\'; % the root folder location of interest

fbase='101'; % the basename of the files of interest -- keep as data, not code

d=dir(fullfile(rootfolder,[fbase '_*.txt'])); % create wildcard matching file pattern, return files...

n={'101_07-09-2019_.txt';'101_04-08-2019_.txt';'101_02-03-2019_.txt';'101_01-06-2019_.txt'}; % the given filenames list

d=cellfun(@(c)struct('name',c,'folder',rootfolder),n);

fdates=datetime(extractBetween({d.name},'_','_').','InputFormat','dd-MM-uuuu')

d1=datetime('05-08-2019','InputFormat',"dd-MM-uuuu")

d2=datetime('06-09-2019','InputFormat',"dd-MM-uuuu")

d=d(isbetween(fdates,d1,d2))

for i=1:numel(d)

fn=fullfile(d(i).folder,d(i).name)

% open, read, do whatever with file here...

end

% fixup the file dates to have a couple inside instead

n={'101_06-09-2019_.txt';'101_06-08-2019_.txt';'101_02-03-2019_.txt';'101_01-06-2019_.txt'}; % the given filenames list

d=cellfun(@(c)struct('name',c,'folder',rootfolder),n);

fdates=datetime(extractBetween({d.name},'_','_').','InputFormat','dd-MM-uuuu');

d=d(isbetween(fdates,d1,d2));

for i=1:numel(d)

fn=fullfile(d(i).folder,d(i).name)

% open, read, do whatever with file here...

end

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