how to detect folder address

The following code performs an operation on all files present in a folder specified by "pathh". I need to be able to copy the compiled executable version of this code into any folder and have the opearion done on all files in that folder. In other words, have it detect it's own folder location and use it for "pathh"

clear all;close all;
pathh='C:\...\folder1\';
list=ls(pathh);m=size(list);
addpath(pathh);
for i=3:m(1)
 file=list(i,:);
fid_v=fopen(strtrim(file),'r') 
fid_o=fopen(strcat(pathh,file,'_out.txt'),'w')

while ~feof(fid_v)

    line = fgetl(fid_v);
    fprintf(fid_o,line);
    fprintf(fid_o,'\r\n');
    line = fgetl(fid_v);

end

fclose(fid_v);
fclose(fid_o);
end

Answer 1

[Sean de Wolski]

doc dir

Is probably the individual most important since it gives you everything the folder. These may help as well:

doc fullfile
doc pwd

Answer 2

[Jonathan Sullivan]

You might consider mfilename

pathh = fileparts(mfilename('fullpath'))

help mfilename
doc  mfilename