how to filter files in matlab

Question

sandy 2014-1-15

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https://ww2.mathworks.cn/matlabcentral/answers/112458-how-to-filter-files-in-matlab

评论： sandy 2014-1-16

i have 1000 .txt files with different file name in a folder(MAIN) and i need to filter some files which the names are given in filestocopy.txt. i need to copy those mentioned files and stored in a separate folder..any help..for example..see below..

 Inside MAIN folder
 SAMPLE_20120807_1816.TXT
SAMPLE_20120807_1916.TXT
SAMPLE_20121207_1311.TXT
SAMPLE_20121307_1816.TXT
SAMPLE_20121322_1902.TXT
SAMPLE_20121412_1351.TXT
 Inside filestocopy.txt
 SAMPLE_20120807_1816
 SAMPLE_20121207_1311
 SAMPLE_20121412_1351

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Answer 1

Azzi Abdelmalek 2014-1-16

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https://ww2.mathworks.cn/matlabcentral/answers/112458-how-to-filter-files-in-matlab#answer_121058

在 MATLAB Online 中打开

files={'SAMPLE_20120807_1816.TXT'
'SAMPLE_20120807_1916.TXT'
'SAMPLE_20121207_1311.TXT'
'SAMPLE_20121307_1816.TXT'
'SAMPLE_20121322_1902.TXT'
'SAMPLE_20121412_1351.TXT'}
files1=strrep(files,'.TXT','')
c=importdata('filename1.txt')
idx=ismember(files1,strtrim(c))
out=files(idx)
destintion='E:/'
for k=1:numel(out)
  copyfile(out{k},destination)
end

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sandy 2014-1-16

super...its works..thanks azzi..

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Answer 2

Jos (10584) 2014-1-15

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https://ww2.mathworks.cn/matlabcentral/answers/112458-how-to-filter-files-in-matlab#answer_120943

在 MATLAB Online 中打开

Here is some code to get you started:

CopyFolder = './MyFolder' ;
fid = fopen('files2copy.txt');
Files = textscan(fid, '%s');
fclose(fid);
CurrentFolder = pwd ;
cd (CopyFolder)
for k=1:numel(Files)
   success = copyfile(Files{k}) % copy to current folder
   if ~success, 
     disp([Error in copying file: ' Files{k})]) ;
     break 
   end   
end
cd (CurrentFolder) % back to original folder

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Image Analyst 2014-1-15

Sandy, you're not accepting the success return arguments. It's more robust to do that, like Jos's code showed. Anyway, does it work? If it does, mark the Answer as "Accepted".

sandy 2014-1-16

编辑：sandy 2014-1-16

在 MATLAB Online 中打开

its not working..my code just copying only the .txt files inside MAIN folder .but i need the copy only the file names mentioned inside filestocopy.txt.. showin error as

   fid = fopen('filestocopy.txt'); 
cell_data = textscan(fid, '%s');
fclose(fid);
mat = [cell_data{:}];
 path_03 = 'C:\Users\test\Desktop\sample\';
listing = dir(fullfile(path_03, '*.tim'));
 mkdir('C:\Users\test\Desktop\sample\','Filtered Files');
a={listing.name};
a=a';
out=strrep(a,'.txt','');
cc=ismember(out,mat);
dd=find(cc);
      for k=1:numel(out)
         x=out(dd,:);
      end
   copyfile(x,'C:\Users\test\Desktop\sample\Filtered Files\');

showing error as

   ??? Error using ==> copyfile
Argument must contain a string.
 Error in ==> sss at 18
   copyfile(x,'C:\Users\test\Desktop\sample\Filtered
   Files\')