how to rename files .tif in a folder ?

hi.. does anyone can help me with this code, please ? it's created by Jiro Doke. it were run but i didn't get the name file as i want. i wanted to change those file's number into only 1,2,3,4,5,and so on.. FYI, i've tried to change the folder name like this..

% Get all files in the current folder clear all;
files = dir(fullfile('C:\Users\ASUS\Desktop\2','*.tif'));
% Loop through each
for id = 1:length(files)
 % Get the file name (minus the extension)
[~, f] = fileparts(files(id).name);
% Convert to number
num = str2double(f);
if ~isnan(num)
 % If numeric, rename
APath = fullfile('C:\Users\ASUS\Desktop\2', files(id).name);
movefile(APath, sprintf('%d.tif', num));
end
end

and the output files name were like this :

2.100000e+00.tif

2.100100e+00.tif

2.100200e+00.tif

2.100300e+00.tif

2.100400e+00.tif

2.100500e+00.tif

etc..

or if i want to change it like

1a

2a

3a

continue directly to

5b

6b

7b

and so on..

what should i do, please ?

thank you so much.

[Stephen23]

"if i want to change it like"

     1a
     2a
     3a

"continue directly to"

     5b
     6b
     7b

"and so on.."

What does that mean? Please explain the naming rules.

[Ade Aulya]

i mean. i have a folder but the files in that folder are from multiple folder. and i want to create the name of that files like this :

1

2

3

4

5

but adding the sign of those files such as number 1 - 3 are from folder image a and number 4-5 are from folder image b, etc..

[Stephen23]

Sure, just add the "folder image" names onto the new file names.

Answer 1

[Stephen23]

D = 'C:\Users\ASUS\Desktop\2';
S = dir(fullfile(D,'*.tif'));
for k = 1:numel(S)
    [~,F] = fileparts(S(k).name);
    if ~isnan(str2double(F))
        old = fullfile(D,S(k).name);
        new = sprintf('%d.tif',k)
        movefile(old,new);
    end
end

[Ade Aulya]

Sir, it works !

thankyou so much for your help :)

thank you..