How to write log to file

Question

I\'m trying to write to a log file with Go.

I have tried several approaches, all of which have failed. This is what I have tried:

func TestLogging(t          


        

Answer 1

The default logger in Go writes to stderr (2). redirect to file

import ( 
    "syscall"
    "os" 
 )
func main(){
  fErr, err = os.OpenFile("Errfile", os.O_APPEND|os.O_WRONLY|os.O_CREATE, 0600)
  syscall.Dup2(int(fErr.Fd()), 1) /* -- stdout */
  syscall.Dup2(int(fErr.Fd()), 2) /* -- stderr */

}