Describe how to log to specific file go app output

FileLOG

func init() {
    logf, err := os.OpenFile("log/mid_loop_"+ (time.Now()).Format("2006-01-02_15-04-05") +".log", os.O_WRONLY|os.O_CREATE, 0640)
        if err != nil {
            log.Fatalln(err)
        }
    log.SetOutput(logf)
...
}

pe exit inchide go filehandler sau se poate pune explicit in main
defer _ = logf.Close()