Creating log of matlab run script with time and date

i want to create log file with date and time. could you please help me how to write time and date information into log file.

Answer 1

[Jan]

FileName = fullfile(tempdir, 'MyLogFile.txt');
Message  = 'Hello';

fid = fopen(FileName, 'a');
if fid == -1
  error('Cannot open file: %s', FileName);
end
fprintf(fid, '%s: %s', datestr(now, 0), Message);
fclose(fid);

See doc datestr for other formats.

With a modern Matlab version:

fprintf(fid, '%s: %s', datetime, Message);