Console.In.ReadLineAsync(CancellationToken)

var cts = new CancellationTokenSource();

Console.CancelKeyPress += (s, e) =>
{
    Console.WriteLine("Cancelling!");
    cts.Cancel();
    e.Cancel = true;
};

Console.WriteLine("Enter commands...");
while (!cts.IsCancellationRequested)
{
    await Console.In.ReadLineAsync(cts.Token).ConfigureAwait(false);
}
Console.WriteLine("Bye...");