How to delete text files except one.?

In one folder there are so many text files. I want to delete all that files except one named XYZ.txt using matlab.

 delete(*.txt)

This function deletes all. So, how to do.?

[José-Luis]

1. Copy that file somewere else ( copyfile() ), delete, copy back.
2. Get list of all files ( dir() ), delete xyz from list, delete all files in list

[Lalit Patil]

Can i do your listed operation using MATLAB.?

Answer 1

[Azzi Abdelmalek]

yourfolder='d:/test/';
f=dir([yourfolder '*.txt'])
f={f.name}
n=find(strcmp(f,'file.txt'));
f{n}=[]
for k=1:numel(f);
  delete([yourfolder f{k}])
end