Invoke remote powershell command from C#

Question

I\'m trying to run an invoke-command cmdlet using C# but I can\'t figure out the right syntax. I just want to run this simple command:

invoke-command -Comput         


        

Answer 1

You use short format:

ps.AddParameter("ScriptBlock", ScriptBlock.Create("Get-childitem C:\\Windows"));

Answer 2

An alternative approach in case it maybe more appropriate in some cases.

        var remoteComputer = new Uri(String.Format("{0}://{1}:5985/wsman", "HTTP", "ComputerName"));
        var connection = new WSManConnectionInfo(remoteComputer, null, TopTest.GetCredential());

        var runspace = RunspaceFactory.CreateRunspace(connection);
        runspace.Open();

        var powershell = PowerShell.Create();
        powershell.Runspace = runspace;

        powershell.AddScript("$env:ComputerName");

        var result = powershell.Invoke();

https://blogs.msdn.microsoft.com/schlepticons/2012/03/23/powershell-automation-and-remoting-a-c-love-story/

Answer 3

A scriptblock string should match the format as "{ ... }".Use the follow code will be ok:

ps.AddParameter("ScriptBlock", "{ get-childitem C:\\windows }");

Answer 4

Ah, the parameter to ScriptBlock itself needs to be of type ScriptBlock.

full code:

InitialSessionState initial = InitialSessionState.CreateDefault();
Runspace runspace = RunspaceFactory.CreateRunspace(initial);
runspace.Open();
PowerShell ps = PowerShell.Create();
ps.Runspace = runspace;
ps.AddCommand("invoke-command");
ps.AddParameter("ComputerName", "mycomp.mylab.com");
ScriptBlock filter = ScriptBlock.Create("Get-childitem C:\\windows");
ps.AddParameter("ScriptBlock", filter);
foreach (PSObject obj in ps.Invoke())
{
   // Do Something
}

Putting the answer here if someone finds it useful in the future