Writing in a text file from two different files

Hi all; I appologize in advance for easy questions but I'm quite new in using matlab formats .I have 2 files:

myfile01.txt

myfile02.txt

How can I print in myfile03.txt one line from first file followed by a line from the second one. For example:

Myfile01.txt has 100 lines

Myfile02.txt has 1 line

here is the code:

N_lines=100;
fidex_01=fopen('myfile01.txt', 'r');
fidex_02=fopen('myfile02.txt','r');
fidex_03=fopen('myfile03.txt', 'w');

for i=1:10%=N_lines;
    read_fidex_01=fgets(fidex_01);
    read_fidex_02=fgets(fidex_02);
     if feof(fidex_01)
                break;
        end;
        fprintf(fidex_03, '%s', read_fidex_01);
        fprintf(fidex_03, '%s', read_fidex_02);
   end

[Walter Roberson]

Is the output to consist of exactly 2 lines, the first from file 1 and the second from file 2?

Is the output to consist of pairs of lines,

file1 first line
file2 first line
file1 second line
file2 second line
file1 third line
file2 third line

and so on?

Is the output to consist of pairs of lines in which the line from the second file is to be repeated?

file1 first line
file2 first line
file1 second line
file2 first line
file1 third line
file2 first line

and so on?

[Ionut Anghel]

Hi,

Yes. Both ways should be.

I have few cases where the output should be:

file1 first line
file2 first line
file1 second line
file2 second line
file1 third line
file2 third line

and other major part of my work where the output should be:

file1 first line
file2 first line
file1 second line
file2 first line
file1 third line
file2 first line

Answer 1

[Walter Roberson]

interleave_files = true;    %or false. True to use 1,1 2,1 1,2 2,2; false to use 1,1 2,1 1,2 2,1 ...

N_lines=100;
fidex_01=fopen('myfile01.txt', 'r');
fidex_02=fopen('myfile02.txt','r');
fidex_03=fopen('myfile03.txt', 'w');

for i=1:10%=N_lines;
  read_fidex_01 = fgets(fidex_01);
  if feof(fidex_01); break; end;

    %read from second if interleaving or if first time in loop
    if interleave_files or i == 1
      read_fidex_02 = fgets(fidex_02);
    end

    fprintf(fidex_03, '%s', read_fidex_01);
    fprintf(fidex_03, '%s', read_fidex_02);
  end

fclose(fidex_01);
fclose(fidex_02);
fclose(fidex_03);