Basic writing to file question(s)

[mauro3]

Well, hardly a MWE… please do read the link I sent. But try something like

  julia> io = open("myfile.txt", "a");                                                                                                                                                          
                                                                                                                                                                                                
  julia> write(io, "Hello world!");                                                                                                                                                             
                                                                                                                                                                                                
  julia> close(io); 

(from the doc-string) Note the io. In your example you open a file with open and then open another one with write.