how to merge multiple files ?

Hi- I want to merge multiple files into one file by selecting one of those files specifically to be the header

I've tried the following code, which I found in the Matlab community. But the first line is not the header I want.

the name of the header file is: header.405

any help will be appreciated

projectdir = uigetdir('pub/eph/planets/ascii/de405');
dinfo = dir( fullfile(projectdir, '*.405') );
filenames = fullfile( projectdir, {dinfo.name} );
output='merged.txt';
fidout=fopen(output,'w');
for cnt=1:length(dinfo)
  fprintf(fidout,'%s\n',dinfo(cnt).name);
  fidin=fopen(dinfo(cnt).name);
  fwrite(fidout,fread(fidin));
  fprintf(fidout,'\n');
  fclose(fidin);
end
fclose(fidout);

Answer 1

[Antoni Garcia-Herreros]

Hello Lilya,

I'm guessing the problem is your header.405 is not the first file listed in dinfo. What you could do i find the position of your header file and set it to be the first.

Index = find(contains(filenames,'header')); % Find the position of the header file
F=[filenames(Index),filenames];
F(Index+1)=[];

output='merged.txt';
fidout=fopen(output,'w');
for cnt=1:length(F)
  fprintf(fidout,'%s\n',F(cnt));
  fidin=fopen(F(cnt));
  fwrite(fidout,fread(fidin));
  fprintf(fidout,'\n');
  fclose(fidin);
end
fclose(fidout);

Hope this works!

[Lilya]

thanks Sir Antoni

this error appeard

Error using fprintf

Function is not defined for 'cell' inputs.