get file name from other directory

hello all :

folder = uigetdir
baseFileName1 = 'MTL.txt'
  fullFileName =dir(fullfile(folder,['*', baseFileName1]))
  fullFileName= fullfile(folder,fullFileName.name)
if exist(fullFileName)

this is my program i was using it under MAC OS , but now that i am using windows this program does not give me the real path of the file, and it shows the name of the file 2 times here is what i get

fullFileName = 

  2×1 struct array with fields:

    name
    folder
    date
    bytes
    isdir
    datenum

enmpty

fullFileName =

        'C:\Users\itach\Desktop\Fmask_3_3 matlab\LC08_L1TP_196035_20181101_20181115_01_T2\._LC08_L1TP_196035_20181101_20181115_01_T2_MTL.txt\LC08_L1TP_196035_20181101_20181115_01_T2_MTL.txt'

as you see the first file is empty and the second one has the path wrong it shows a directory that does not exist

(._LC08_L1TP_196035_20181101_20181115_01_T2_MTL.txt)

can you help me to fix it and get the right directory and right name

[Bob Thompson]

Why are you using 'fullfile' twice? Most likely this is why you are having your problem. I would make the following adjustment.

fullfile = dir([folder,'*',baseFileName1]);

[Zakaria Sadok]

it says error using dir

Error using dir
Characters adjacent to a ** wildcard must be file separators.

Error in ourProgram (line 22)
    fullFileName =dir([folder,'*',baseFileName1])

Answer 1

[Stephen23]

The problem is on this line:

fullFileName= fullfile(folder,fullFileName.name)
%                             ^^^^^^^^^^^^^^^^^ comma-separated list

where you take the (badly-named) structure fullFileName and convert it into a comma-separated list. Read these to learn what comma-separated lists are:

https://www.mathworks.com/help/matlab/matlab_prog/comma-separated-lists.html

https://www.mathworks.com/matlabcentral/answers/320713-how-to-operate-on-comma-separated-lists

This comma-separated list means that line is exactly equivalent to:

fullFileName= fullfile(folder,fullFileName(1).name,fullFileName(2).name,...,fullFileName(end).name)

which gives exactly the output that you have shown us, and is unlikely to be very useful.

"can you help me to fix it and get the right directory and right name"

You will have to use a loop to iterate over those filenames, e.g.:

D = uigetdir()
B = 'MTL.txt'
S = dir(fullfile(D,['*',B]))
for k = 1:numel(S)
    F = fullfile(D,S(k).name)
    if exist(F)
        ...
    end
end

Note that this is based on the method shown in the MATLAB documentation:

https://www.mathworks.com/help/matlab/import_export/process-a-sequence-of-files.html

[Zakaria Sadok]

it worked well, thank you so much sir :D