Renaming Files based on a Folder Name in Sequence

Hi, I am trying to do the following: I have folders participant 1, participant 2, etc. I want to name the files xxxx-folder name. Each file name is different but begins with 0001_. How can I do this in a loop (for multiple folders)?

[Akira Agata]

> I have folders participant 1, participant 2, etc. I want to name the files xxxx-folder name.

You mean, for example, files in the 'participant 1' folder shall be renamed to '0001_participant 1.***', '0002_participant 1.***',...and so on? ('***' is extension of each file)

[Naomi Gaggi]

Yes, thanks - or it would even be helpful to just add participant 1 at the end of each file name

Answer 1

[Akira Agata]

Thank you for the clarification. Then, the program would be something like this.

s = dir('./participant*/*.*');
prevDir = '';

for kk = 1:numel(s)
  if ~s(kk).isdir
    oldName = s(kk).name;
    [~,~,ext] = fileparts(oldName);
    [~,currDir] = fileparts(s(kk).folder);
    if ~strcmp(s(kk).folder,prevDir)
      pref = 1;
      prevDir = s(kk).folder;
    else
      pref = pref + 1;
    end
    newName = sprintf('%04d_%s%s',pref,currDir,ext);
    movefile(fullfile(s(kk).folder,oldName),fullfile(s(kk).folder,newName));
  end
end

[Naomi Gaggi]

Thanks, so much this was so helpful!!