MATLAB: Index for subfolders without *.pdf files

MATLAB

Hi guys. I have one folder which contains several 100 subfolders. I need to index for subfolder with does not contain a pdf file, and locate these folders. Hwo can I do this? Thanks a lot

Best Answer

Simpler and more robust:

D = 'path to the main folder'; 
S = dir(fullfile(D,'*'));
N = setdiff({S([S.isdir]).name},{'.','..'});
F = @(s)isempty(dir(fullfile(D,s,'*.pdf')));
X = cellfun(F,N)

It returns logical indices, simply use FIND for subscript indices.

The names of the folders without .PDF files:

N(X)

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projectdir = 'name of main directory goes here';
dinfo = dir(projectdir);
dinfo(~[dinfo.isdir]) = [];   %remove non-folders
dinfo(ismember({dinfo.name}, {'.', '..'}) = [];   %remove . and .. directories
num_subdir = length(dinfo);
for S = 1 : num_subdir
  this_subdir = dinfo(S).name;
    subdinfo = dir( fullfile(projectdir, this_subdir, '*.txt') );
    num_subfile = length(subdinfo);
    for F = 1 : num_subfile
      this_file = subdinfo(F).name;
      old_file = fullfile( projectdir, this_subdir, this_file );
      new_file = fullfile( projectdir, [this_subdir '-' this_file] );
      try
        rename(old_file, new_file);
      catch ME
        fprintf('Failed to rename "%s" to "%s"\n', old_file, new_file );
      end
    end
end

MATLAB: Rename files from subfolders

Get all files structure to one variable

cd <your directory>
d = dir('**/*.bmp')

Apply loop to get every file to structure

filename_full = fullfile(d(loop variable).folder, d(loop variable).name);
[~, filename, ext] = fileparts(filename_full);

check file names use ifelse condition

if strcmp(filename, '1');
    filename = '9'  % so to all other 3 files
end

concatanate all string to form renamed path

filename_full_ren = fullfile(d(loop variable).folder,[filename, ext]);

then rename file by moving

movefile(filename_full, filename_full_ren);

You are done

Best Answer

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