How to read from user input without the \n ?

How to read from user input without the \n ?

        reader := bufio.NewReader(os.Stdin)
        fmt.Print("Enter text: ")
        port, _ = reader.ReadString('\n')
        port = strings.Replace(port, "\n", "", -1)

here : port, _ = reader.ReadString('\n')

thanks

You can remove the newlines with strings.TrimSpace, or try parsing with fmt.Fscanf and friends.

thks

Maybe try with

bufio.NewScanner(os.Stdin)

i want to read an input and newScanner doesn't seems to work

I meant
scanner := bufio.NewScanner(os.Stdin)
for scanner.Scan() {
    fmt.Printf("%s", scanner.Text())
}

I think what you may be asking is to get input characters before a newline is entered? Stdin will be line buffered if it is attached to a terminal, you will want to use the vt100 interface for finer control of user input on Linux. You can do this multiple ways, interact with /dev/tty directly, exec stty, or just search for a library to do these things for you (what I suggest) for a more portable general approach. 

A short, fast approach would be to use a slice operation.
port = port[:len(port)-1]