Pass Powershell Variables to Command Prompt line

Question

I want to make a PowerShell script that can be used to connect computers to various client's SonicWall VPNs (specifically through Global VPN and NetExtender). I would like to have it be like a user interface to prompt the user (which will set the variables) and then use that information to pass through to command lines in the command prompt.

I want to be able to have information entered in be applied in the cmd line in the script.

I have tried using the MobileConnect connection through (Using the the app from the app store) and connecting with the Microsoft VPN client, but that does not grab all the network information; specifically DNS servers.

The best way is to install either Global VPN or NetExtender and connect through cmd line; that way will grab the entire network information.

This is the basic command to run it:

 Function Connect-VPN {

 Set-Location -Path "C:\Program Files (x86)\SonicWALL\SSL-VPN\NetExtender"

 cmd /c "NECLI connect -s address:4433 -u Uname -p Password -d Domain -A"

 Set-Location -Path C:\

 }

Basically, you change the directory and execute the commands with those arguments.

I would like to prompt in POSH, create the variables with the user input, then have those arguments passed down.

What I have right now is:

param(
  [string]$Testadd ,
  [string]$Testun ,
  [string]$TestPW ,
  [string]$TestDom 
  )


If ($Testadd -eq "")
   {$Testadd = (Read-Host "test")
   }

If ($Testun -eq "")
   {$Testun = (Read-Host "test")
   }


If ($TestPW -eq "")
   {$TestPW = (Read-Host "test")
   }


If ($TestDom -eq "")
   {$TestDom = (Read-Host "test")
   }

 Set-Location -Path "C:\Program Files (x86)\SonicWALL\SSL-VPN\NetExtender"

 cmd /c "NECLI connect -s "$($Testadd)" -u "$($Testun)" -p "$($TestPW)" -d "$($TestDom)" -A"

 Set-Location -Path C:\

The problem is that the all the arguments come out null. I do not know if it is possible, but I wanted to see.

Answer 1

You can try to build the string before running the cmd

param (
    [string]$Testadd,
    [string]$Testun,
    [string]$TestPW,
    [string]$TestDom
)


If ($Testadd -eq "")
{
    $Testadd = (Read-Host "testadd")
}

If ($Testun -eq "")
{
    $Testun = (Read-Host "testun")
}


If ($TestPW -eq "")
{
    $TestPW = (Read-Host "testpw")
}


If ($TestDom -eq "")
{
    $TestDom = (Read-Host "testdom")
}

Set-Location -Path "C:\Program Files (x86)\SonicWALL\SSL-VPN\NetExtender"

#build the string before
$cmd = "NECLI connect -s " + $($Testadd) + " -u " + $($Testun) + " -p " + $($TestPW) + " -d " + $($TestDom) + " -A"

# Or even like this
$cmd = "NECLI connect -s $Testadd -u $Testun -p $TestPW -d $TestDom -A"

# exec command
cmd /c $cmd

Set-Location -Path C:\