when I run an m-file, Is there a way to "change current folder" to the folder that this m-file is placed, by means of some commands at the beginng of the file ?

I have a m-file, for example mytest.m and at the beginning of it , I would like to place a command (or commands), in order to "change current folder" into the folder that mytest.m is placed. This change of the folder has to be done, provided that we don't know the folder of mytest.m.

Is it feasible ?

Thanks in advance

[Stephen23]

"Is it feasible ?"

Feasible... yes.

Good idea... unlikely.

Changing directories is slow, and makes debugging much harder.

All MATLAB functions that read/write files accept absolute/relative filenames (which are much more efficient than changing directories), so why not just do that?

https://www.mathworks.com/help/matlab/matlab_env/specify-file-names.html

Answer 1

[Walter Roberson]

mfileinfo = mfilename('fullpath');
mfiledir = fileparts(mfileinfo);
olddir = pwd;
onCleanup(@() cd(olddir));
cd(mfiledir);

The above will also cd back to the previous directory when the function exits.

[Dimitris Kalogiros]

Thanks Walter