Create Text file containing list of file names

Question

C G 2018-4-14

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/394807-create-text-file-containing-list-of-file-names

评论： C G 2018-4-30

I am sure this has been answered before somewhere, but I am getting really frustrated trying to find the correct code.

I have over 400 files in a directory. I would like to create a text file that lists all of their file names. Then place this text file into the directory with the original files, not the matlab working directory. I have to do this well over 100 times for 100 different directories.

The only code that has worked partially is this:

dirName = 'D:\ABN tdump files\ERA -I 10m\April 10m';   %# folder path
files = dir( fullfile(dirName,'*.') );   %# list all *.xyz files
files = {files.name}';                   %'# file names

I have created a cell with all of my file names, but now I can't create the text file. I get the very ambiguous error message that just says there is an error with one of my lines of code. Not helpful. So. Question. How does one create a text file with a cell array?

8 个评论
显示 6更早的评论隐藏 6更早的评论

C G 2018-4-16

在 MATLAB Online 中打开

Thank you Walter Roberson. Works Great.

files([files.isdir]) = []; %removes ., .. and all folders

This also worked.

files = dir(fullfile(dirName,'name*') );

C G 2018-4-30

在 MATLAB Online 中打开

This is for all that need to know how to create a lot of files and then have them move to a certain location. This code works a charm. I created an excel file with all of the directory paths, "FileDirectory". I then imported the list as a string.

 for q = 1:144 %This number is linked to the number of cells that have filepaths. Pathnames in FileDirectory.xls.
      filedirectory = FileDirectory{q,1};
     dirName = filedirectory; %'D:\ABN_tdump_files\10_day_Traj\ERA-I_2500m\April2500m\';              %# folder path
 files = dir(fullfile(dirName,'fdump*') );   %# list all *.xyz files
 files = {files.name};                      %'# file names
 [fid,msg] = fopen(sprintf('INFILE'),'wt');
assert(fid>=0,msg)
fprintf(fid,'%s\n',files{:});
fclose(fid);
  movefile ('C:\Users\cglor\Documents\HYSPLIT\INFILE', dirName)
  end

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Stephen23 2018-4-14

2
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/394807-create-text-file-containing-list-of-file-names#answer_315085

编辑：Stephen23 2018-4-14

在 MATLAB Online 中打开

Simpler:

D = 'D:\ABN tdump files\ERA -I 10m\April 10m';
S = dir(fullfile(D,'*.xyz')); % specify the file extension to exclude directories
[fid,msg] = fopen(fullfile(D,'text.txt'));
assert(fid>=3,msg)
fprintf(fid,'%s\n',S.name)
fclose(fid);

Repeat for each directory D.

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

Answer 2

Ahmet Cecen 2018-4-14

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/394807-create-text-file-containing-list-of-file-names#answer_315079

编辑：Ahmet Cecen 2018-4-14

在 MATLAB Online 中打开

Almost there. Add these lines to the bottom and it should work:

files(1:2) = []; % get rid of . and ..
fileID = fopen(fullfile(dirName,'list.txt'),'w'); % create and open file
cellfun(@(x) fprintf(fileID,'%s \n',x), files) % write file

4 个评论
显示 2更早的评论隐藏 2更早的评论

Ahmet Cecen 2018-4-14

在 MATLAB Online 中打开

Ah there it is:

>> dir('*')
!test.txt  .          ..         A1.tiff    A2.tiff

Welp... gotta go do some changes in old codes now...

Walter Roberson 2018-4-14

I have been unable to find any documentation promising any particular directory order for NTFS. In practice the order has always been sorted by Unicode when I have tested. (Though I have not checked if it is utf8 or utf16-le or something else).

It is not uncommon these days for filesystems to sort the first block of a directory whenever a change is made to the block, but filesystems differ in whether they keep all of the blocks of one directory sorted, since doing so can result in unnecessary disk i/o. Filesystems have also differed about whether to sort alphabetically (allowing binary search on names) or sorting to have the most commonly used entries first.

请先登录，再进行评论。