#File handling : -https://golangbot.com/write-files/ package main import ( "fmt" "os" ) func main() { file, err := os.OpenFile("dw.txt", os.O_CREATE|os.O_WRONLY, 0777) defer file.Close() f, err := os.OpenFile("dw.txt", os.O_APPEND|os.O_WRONLY, 0644) if err != nil { fmt.Println(err) return } newLine := "File handling is easy." _, err = fmt.Fprint(f, newLine) if err != nil { fmt.Println(err) f.Close() return } err = f.Close() if err != nil { fmt.Println(err) return } fmt.Println("file appended successfully") }