Csdrhrt

I have batch file for telnet a server automatically, I want to do the same thing with PowerShell

Batch File named Script.bat :

:: Open a Telnet window

 start telnet.exe 10.84.10.85

:: Run the script

 cscript SendKeys.vbs

Command File named SendKeys.vbs :

set OBJECT=WScript.CreateObject("WScript.Shell")

 WScript.sleep 1000

 OBJECT.SendKeys "myPassword{ENTER}"

 WScript.sleep 1000

 OBJECT.SendKeys "7{ENTER}"

 WScript.sleep 1000

 OBJECT.SendKeys "1{ENTER}"

 WScript.sleep 1000

 OBJECT.SendKeys "{ENTER}"

 WScript.sleep 1000

 OBJECT.SendKeys "{ENTER}"

 WScript.sleep 1000

 OBJECT.SendKeys "Y{ENTER}"

 WScript.sleep 3000

 OBJECT.SendKeys ""

PowerShell has no built-in functionality to emulate keystrokes.

Practically, you have two options: COM-Automation and Interop.

1. SendKeys via COM

Like in VB(S)) you can create a Shell-Object and SendKeys. Here is the PowerShell way to do it.

$wshell = New-Object -ComObject wscript.shell;

$wshell.SendKeys('a')

If you would like to send a keystroke to a window, you have to activate it first:

$wshell = New-Object -ComObject wscript.shell;

$wshell.AppActivate('title of the application window')

Sleep 1

$wshell.SendKeys('~')

Some keystrokes have special variables like ~ for RETURN. Here is a complete list.

After activating a window it's often necessary to wait a second until it becomes responsive, otherwise it'll send the key to the PowerShell window, or to nowhere.
The scripting Host's SendKeys method can be unreliable, but luckily there is a better approach.

2. SendKeys via Interop

Like in C#, you can use the SendWait method from the .NET Framework in PowerShell.

[void] [System.Reflection.Assembly]::LoadWithPartialName("'System.Windows.Forms")

[System.Windows.Forms.SendKeys]::SendWait("x")

If you want to activate a window it can be don like this:

[void] [System.Reflection.Assembly]::LoadWithPartialName("'Microsoft.VisualBasic")

[Microsoft.VisualBasic.Interaction]::AppActivate("Internet Explorer - Windows")

To Sleep, you can use the Start-Sleep Cmdlet.

Regarding your original problem, I would suggest the following solution:

# Open a Telnet window

Start-Process telnet.exe -ArgumentList 10.84.10.85

# Run the keystrokes

Add-Type -AssemblyName System.Windows.Forms

[System.Windows.Forms.SendKeys]::SendWait('myPassword{ENTER}')

Start-Sleep 1

[System.Windows.Forms.SendKeys]::SendWait('7{ENTER}')

Start-Sleep 1

[System.Windows.Forms.SendKeys]::SendWait('1{ENTER}')

Start-Sleep 1

[System.Windows.Forms.SendKeys]::SendWait('{ENTER}')

Start-Sleep 1

[System.Windows.Forms.SendKeys]::SendWait('{ENTER}')

Start-Sleep 1

[System.Windows.Forms.SendKeys]::SendWait('Y{ENTER}')

Start-Sleep 1

[System.Windows.Forms.SendKeys]::SendWait('')

WARNING: Be extra careful if you're using this method to send a password, because activating a different window between invoking AppActivate and invoking SendKeys will cause the password to be sent to that different window in plain text (e.g. your favorite messenger)!

I did some of modification in the script, I have a list of IP server which have the same password and I want to telnet the list automatically and sendKey for deactivate or activate the FTP server .

my script is :

  ## - List of IP

  $printers = get-content "C:Dir2servers.txt"



  foreach ($IPAddress in $printers){



   ## - Start Telnet Session:

     start-process C:WindowsSystem32telnet.exe -argumentlist $IPAddress



   ## - SendKey for each IP

     $obj = New-Object -com Wscript.Shell

     sleep -s 3

     $obj.SendKeys("MyPassword{ENTER}")

     sleep -s 3

     $obj.SendKeys("7{ENTER}")

     sleep -s 3

     $obj.SendKeys("1{ENTER}")

     sleep -s 3

     $obj.SendKeys("{ENTER}")

     sleep -s 3

     $obj.SendKeys("{ENTER}")

     sleep -s 3

     $obj.SendKeys("Y{ENTER}")

     sleep -s 3

     $obj.SendKeys("{ENTER}")

     sleep -s 3

     }