Changing the names of text files in a directory

I have 400 files in a directory called NAIC that are named like this: 7488311dbf9821f9.txt.001 is it possible to rename using matlab to naic1.txt till naic400.txt?

Answer 1

[Fangjun Jiang]

Copy all your files to a folder named '\test' under current folder, run the following code.

Folder=fullfile(pwd,'test');
Files=dir(Folder);
for k=1:length(Files)
    [PathStr,FileName,FileExt]=fileparts(Files(k).name);
    if length(FileExt)==4 % Exclude folder . and folder ..
        movefile(fullfile(Folder,Files(k).name),...
            fullfile(Folder,['naic',FileExt(2:end),'.txt']));
    end
end

Answer 2

[Nathan Greco]

Maybe this will do? (Run this under your NAIC directory.)

Assuming you are on a windows machine:

 files = dir('*.txt.*');
 names = {files.name}
 for i=1:length(names)
   oldfilename = names{i};
   newfilename = sprintf('naic%d.txt',str2num(oldfilename(end-2:end)));
   system(['ren ' oldfilename ' ' newfilename]);
 end

OR (shouldn't matter what system you're on):

 files = dir('*.txt.*');
 names = {files.name}
 for i=1:length(names)
   oldfilename = names{i};
   newfilename = sprintf('naic%d.txt',str2num(oldfilename(end-2:end)));
   movefile(oldfilename,newfilename);
 end

[Walter Roberson]

rui gao comments

Absolutely a good answer. Thanks.

Answer 3

[Walter Roberson]

Use movefile() in conjunction with the information in this FAQ