Execute PowerShell Script from C# with Commandline Arguments

Try creating scriptfile as a separate command:

Command myCommand = new Command(scriptfile);

then you can add parameters with

CommandParameter testParam = new CommandParameter("key","value");myCommand.Parameters.Add(testParam);

and finally

pipeline.Commands.Add(myCommand);

Here is the complete, edited code:

RunspaceConfiguration runspaceConfiguration = RunspaceConfiguration.Create();Runspace runspace = RunspaceFactory.CreateRunspace(runspaceConfiguration);runspace.Open();Pipeline pipeline = runspace.CreatePipeline();//Here's how you add a new script with argumentsCommand myCommand = new Command(scriptfile);CommandParameter testParam = new CommandParameter("key","value");myCommand.Parameters.Add(testParam);pipeline.Commands.Add(myCommand);// Execute PowerShell scriptresults = pipeline.Invoke();

I have another solution. I just want to test if executing a PowerShell script succeeds, because perhaps somebody might change the policy. As the argument, I just specify the path of the script to be executed.

ProcessStartInfo startInfo = new ProcessStartInfo();startInfo.FileName = @"powershell.exe";startInfo.Arguments = @"& 'c:\Scripts\test.ps1'";startInfo.RedirectStandardOutput = true;startInfo.RedirectStandardError = true;startInfo.UseShellExecute = false;startInfo.CreateNoWindow = true;Process process = new Process();process.StartInfo = startInfo;process.Start();string output = process.StandardOutput.ReadToEnd();Assert.IsTrue(output.Contains("StringToBeVerifiedInAUnitTest"));string errors = process.StandardError.ReadToEnd();Assert.IsTrue(string.IsNullOrEmpty(errors));

With the contents of the script being:

$someVariable = "StringToBeVerifiedInAUnitTest"$someVariable

I had trouble passing parameters to the Commands.AddScript method.

C:\Foo1.PS1 Hello World HungerC:\Foo2.PS1 Hello WorldscriptFile = "C:\Foo1.PS1"parameters = "parm1 parm2 parm3" ... variable length of params

I Resolved this by passing null as the name and the param as value into a collection of CommandParameters

Here is my function:

private static void RunPowershellScript(string scriptFile, string scriptParameters){    RunspaceConfiguration runspaceConfiguration = RunspaceConfiguration.Create();    Runspace runspace = RunspaceFactory.CreateRunspace(runspaceConfiguration);    runspace.Open();    RunspaceInvoke scriptInvoker = new RunspaceInvoke(runspace);    Pipeline pipeline = runspace.CreatePipeline();    Command scriptCommand = new Command(scriptFile);    Collection<CommandParameter> commandParameters = new Collection<CommandParameter>();    foreach (string scriptParameter in scriptParameters.Split(' '))    {        CommandParameter commandParm = new CommandParameter(null, scriptParameter);        commandParameters.Add(commandParm);        scriptCommand.Parameters.Add(commandParm);    }    pipeline.Commands.Add(scriptCommand);    Collection<PSObject> psObjects;    psObjects = pipeline.Invoke();}