packagemainimport("bufio""fmt""os""strings")funcmain(){fmt.Fprint(os.Stdout,"$ ")// Wait for user inputin,err:=bufio.NewReader(os.Stdin).ReadString('\n')iferr!=nil{fmt.Println(err.Error())}fml.Printf("%s: command not found\n",strings.TrimRight(in,"\n"))}