create a .txt file in a specific folder

normally i use this:

    mkdir('xxxx')  

filename = ['xxxx\',FileName,'.txt'];"

to build the file name

and now the xxxx is variable so i can't do this 'xxxx\' any more, so how can i resolve this problem ? thank YOU!

Answer 1

[Stephen23]

Rather than concatenating strings it is much more reliable to use fullfile to create filepaths:

dir_path = 'my_project_directory';
file_name = 'test1.txt';
mkdir(dir_path);
out = fullfile(dir_path,file_name)

Note that you do not need to specify any path separator characters as these are inserted by fullfile automatically (and of the correct type to match your OS).

Similarly it is also more reliable to build a filename using sprintf rather than string concatenation, e.g. to generate the above filename:

file_name = sprintf('test%d.txt',1);

[Ahmed BOULMANE]

I created the file 'filename.txt', and I created the folder 'dir_path', but, when I made fullfile (dir_path, filename), the file 'filename.txt' stay always outside of the folder 'dir_path', and what I want to do is to create the file 'filename' inside of the folder

[Guillaume]

You will have to show us the exact code you use to create the text file.