How to send "Space Key" as command.

Question

I am using Rebex's Shell class and I have successfully logged into the terminal and have set prompt.

Issue is, I want to run a command which requires user interaction, I am getting its 1st page output but for 2nd page it's prompting to press "space key" (--type q to quit or space key to continue--)

I have tried following lines but getting error: "Unable to process command."

ConsoleKeyInfo key = new ConsoleKeyInfo('x20', ConsoleKey.Spacebar, false, false, false); m_Shell.SendCommand(key.KeyChar.ToString());

Please can any one help me in this regard.

Thanks in advance.

Answer 1

Issue resolved with VirtualShell

Comments

Oh, you were a bit quicker than me to resolve your issue. Great!

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Thanks Lukas,

I have place another query related to timeOut. Please could you answer. Thanks in advance.

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Of course, I am looking on it.

Answer 2

Unfortunately, the Shell class is not able to handle your case. Please try our experimental VirtualShell class, which provides such functionality.

You can use it like this:

// initialize Telnet shell
Telnet telnet = new Telnet("server");
VirtualShell shell = new VirtualShell(telnet.StartVirtualTerminal());

// set prompt
shell.Prompt = "username[@].*[$] ";

// login
shell.Expect("[Ll]ogin: ");
shell.SendCommand("username");
shell.Expect("[Pp]assword: ");
shell.SendCommand("password");

// read welcome message
Console.WriteLine("Welcome message:");
Console.WriteLine(shell.ReadAll());

// send a multipage command
Console.WriteLine("ls -la / | more:");
shell.SendCommand("ls -la / | more");

// receive the first page
Console.WriteLine("Page1:");
Console.WriteLine(shell.Expect("--More--"));

// send only the <space> to the server
shell.Terminal.SendToServer(" ");

// recieve the rest data
Console.WriteLine("Page2:");
Console.WriteLine(shell.ReadAll());

Usually you don't know how many pages you will receive. You would do something like this:

...
shell.SendCommand("ls -la / | more");

string received;
int page = 1;
int match;
do
{
    // wait for Prompt or "--More--"
    match = shell.Expect(out received, shell.Prompt, "--More--");
    if (match < 0)
        throw new InvalidOperationException(
            "Neither the Prompt nor the expected regex was received within the Timeout limit.");

    // display received data
    Console.WriteLine("Page{0}:", page++);
    Console.WriteLine(received);

    // if received "--More--", send <space> to the server
    if (match == 1)
        shell.Terminal.SendToServer(" ");

} while (match != 0);

Answer 3

Hi, we have just release new Scripting API in 2014-R2 release. You can read more of its features on Scripting features page.