append the content of a txt to the end of a txt....

how can i append the content of content.txt to the end of the 33.txt

i think the code should be something like that...

clc

fid1 = fopen('C:\Users\Mr Andrew\Desktop\content.txt', 'r');

fid = fopen('C:\Users\Mr Andrew\Desktop\33.txt', 'a');

for k = 1:5

fprintf(fid,'fid1 \r\n') ;

end

fclose(fid);

fclose(fid1);

thank you

Answer 1

[Cedric]

You can read/write line by line with something like

 while ~feof(fid1)
    line = fgetl(fid1) ;
    fprintf(fid, '%s\r\n', line) ;
 end

but if you don't need to process the content, you could go for a more direct way, e.g.

 fid = fopen('content.txt', 'a') ;
 fwrite(fid, fileread('33.txt')) ;
 fclose(fid) ;

Now you could have a more robust approach which reads the content of the first file, determines if it ends with '\r\n', and adds it if not before appending the content of the second file.

[Andrew]

thank you veeeery much!!!

Answer 2

[dpb]

Which OS? Under Win, I'd just use

system('copy 33.txt+content.txt')

To make a new target file, also specify a destination filename...

system('copy 33.txt+content.txt bigtextfile.txt')

I'm certain the other OS has something similar but not positive about syntax.

Inside Matlab your proposed script doesn't work as written -- you open the one for append and the other for read access as have but then must read the other in explicitly and write out -- which is the easiest way to do that is dependent on the content in the file. I'm not certain what the loop w/ upper limit of 5 is trying to do???

fi = fopen('C:\Users\Mr Andrew\Desktop\content.txt', 'r');
fo = fopen('C:\Users\Mr Andrew\Desktop\33.txt', 'wa');
while ~feof(fi)
  l=fgetl(fi);            % get line from input
  fprintf(fp,'%s\n',l);   % write to output
end
fi=fclose(fi);
fo=fclose(fo);

[Andrew]

thank you very much...