As shown in the help:
fid = fopen('fgetl.m');
tline = fgetl(fid);
while ischar(tline)
disp(tline)
tline = fgetl(fid);
end
fclose(fid);
Now just modify that to open 2 files, and add a line counter then break after you've transferred x of them (untested)
fin = fopen('input.txt');
fout = fopen('output.txt', 'wt');
tline = fgetl(fin);
count = 0;
while ischar(tline) && count < x
disp(tline)
tline = fgetl(fin);
if ischar(tline)
fprintf(fout, '%s\n', tline);
end
count = count + 1;
end
fclose(fin);
fclose(fout);
Best Answer