How to select files in a directory

Hello,

I created a directory which contains a lot of DICOM files (IM_0001, IM_0004, ..., IM_0025, IM_0028, IM_0031, ..., IM_0052, ..., IM_0088) using :

   listing = dir('IM*.*');

I would like to select only files which names are between IM_0025 and IM_0052 (IM_0025, IM_0028, IM_0031, ..., IM_0052) and save them in another directory.

Is there any function that may help me ?

Thank you in advance !

Answer 1

[Walter Roberson]

listing = dir('IM*.*');
for K = 1 : length(listing)
  fname = listing(K).name;
  if ~strcmp(fname(1:3), 'IM_'); continue; end
  fnum = str2double(fname(4:7));
  if isnan(fnum) || fnum < 25 || fnum > 52; continue; end
  copyfile(fname, 'NewDirectoryNameGoesHere');
end

or use movefile() instead of copyfile() if you want them moved instead of duplicated.

Answer 2

[Azzi Abdelmalek]

d=struct2cell(dir('IM*.*'));
name=d(1,:)
for k=1:numel(name)
file=name{k}
v=str2num(file(6:end))
If v>=25 & v<=52
copyfile(file,'yourfolder')
end

Answer 3

[Thorsten]

% run once for, see if the 'move file' output is ok
% if ok, uncomment the movefile line such that the files are actually moved
listing = dir('IM*.*');
dstdir = './newdir'; % where the selected files should be moved

for i = 1:numel(listing)
  filename = d(i).name;
  [num elements_matched] = sscanf(filename, 'IM_%d');
  if elements_matched && num >= 25 && num <= 52
    disp(['move file ' filename ' to ' dstdir '.'])  
    % movefile(filename, dstdir)
  end
end

Answer 4

[K BV]

Thank you all for your answers ! That helped me extracting the files I need !