append_to_file.md

Append to file in go

f, err := os.OpenFile("text.log",
	os.O_APPEND|os.O_CREATE|os.O_WRONLY, 0644)
if err != nil {
	log.Println(err)
}
defer f.Close()
if _, err := f.WriteString("text to append\n"); err != nil {
	log.Println(err)
}