how can i open and add text to a .txt file?

Hello,

I have this List.txt file:

id firstname_lastname department first second third
3033011 Penelope_Cruz Cnm 99 88 77
404402 Gary_Cooper Bio 45 45 45
5055022 Tony_Curtis Dis 23 89 100
606603 Jim_Carrey Mng 100 100 100

I need to open it with matlab and then I need to add this:

 12131415 Jack_Nicholson Mat 60 70 80

to List.txt

How can I do this?

also, I can only get the name Jack Nicholson without the underscore.

Thanks

Answer 1

[Image Analyst]

fid = fopen(filename, 'at');
if fid ~= -1
    fprintf(fid, ...... whatever.....
    fclose(fid);
end

[ben velt]

I dont understand what I need to write in the whatever part

[Salaheddin Hosseinzadeh]

Whatever part is whatever you want to write to the file! lol

Replace it with your data, for instance

data = '12131415 Jack_Nicholson Mat 60 70 80'

[Walter Roberson]

fid = fopen('List.txt', 'at');
fprintf(fid, '%s\n', '12131415 Jack_Nicholson Mat 60 70 80');
fclose(fid);

[ben velt]

the problem in that I cant enter this whole line together " 12131415 Jack_Nicholson Mat 60 70 80" I can get it that way: id=12131415; name=Jack_Nicholson; department=Mat; first=60; second=70; third=80;

[Image Analyst]

Then do

fprintf(fid, '%d %s %s %d %d %d\n', id, name, department, first, second, third);

[ben velt]

thanks alot!!