Running PowerShell from .NET Core

Looks like it is well supported as of .NET Core 2.0 and PowerShell 6 Beta 3 (although it was supported in Beta 1 and 2 also but not as easily), here is a link to the Host PowerShell documentation in the GitHub repo

And they give a good sample application showing it running with .NET Core 2.0 and PowerShell Core v6.0.0-beta.3 and Later:

https://github.com/PowerShell/PowerShell/tree/master/docs/host-powershell

In order to get the correct packages into my NuGet package list I did need to add powershell-core as a new NuGet repository location which was:

https://powershell.myget.org/F/powershell-core/api/v3/index.json

I could then install the NuGet packages:

install-package microsoft.powershell.sdk -version 6.0.0-rc
install-package microsoft.powershell.commands.diagnostics -version 6.0.0-rc
install-package microsoft.wsman.management -version 6.0.0-rc

All three of these dependencies were required and then I could execute the following simple PowerShell command in my asp.net core MVC Web Application:

public class PowerShellHelper
{
    public void Execute(string command)
    {
        using (var ps = PowerShell.Create())
        {
            var results = ps.AddScript(command).Invoke();
            foreach (var result in results)
            {
                Debug.Write(result.ToString());
            }
        }
    }
}

Thx for @Roman and @JamesEby.

If we can not use dotnet core 2.0 or later and we can use Process to run the PowerShell.exe in Windows.

The path is C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe and we can use Process in this code.

        var process = new Process
        {
            StartInfo = new ProcessStartInfo(@"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe",
                script)
            {
                WorkingDirectory = Environment.CurrentDirectory,
                RedirectStandardOutput = true,
                CreateNoWindow = true,
            }
        };
        process.Start();

        var reader = process.StandardOutput;
        return reader.ReadToEnd();

The script value is the PowerShell Script and the reader.ReadToEnd() return the power shell output text.

See: https://stackoverflow.com/a/30846513/6116637

Although James Eby's answer is correct, there has been some new info that I found useful.

There is now PowerShell Core available for cross-platform use. And it is open source!

Here is some useful points from the article from Microsoft:

PowerShell now officially supports macOS and Linux, including:

• Windows 7, 8.1, and 10
• Windows Server 2008 R2, 2012 R2, 2016
• Windows Server Semi-Annual Channel
• Ubuntu 14.04, 16.04, and 17.04
• Debian 8.7+, and 9
• CentOS 7
• Red Hat Enterprise Linux 7
• OpenSUSE 42.2
• Fedora 25, 26
• macOS 10.12+

Logging

On macOS, PowerShell uses the native os_log APIs to log to Apple's unified logging system. On Linux, PowerShell uses Syslog, a ubiquitous logging solution.

SSH-based PowerShell Remoting

The PowerShell Remoting Protocol (PSRP) now works with the Secure Shell (SSH) protocol in addition to the traditional WinRM-based PSRP. Source

Breaking Changes link