检查应用程序是否由Linux上的sudo / admin运行

Question

我正在尝试检查.Net代码是否在Linux上以sudo / admin身份运行。它适用于Windows但在Linux上引发异常。

如何使用.NET Core2.0内置类检查app是否由Ubuntu Linux上的admin / sudo运行？

以下是我尝试的代码：

using System;
using System.Security.Principal;

namespace smallTestsCore
{
    class Program
    {
        static void Main(string[] args)
        {
            Console.WriteLine(Program.IsAdministrator);
            Console.ReadLine();
        }
        public static bool IsAdministrator =>
            new WindowsPrincipal(WindowsIdentity.GetCurrent())
                .IsInRole(WindowsBuiltInRole.Administrator);
    }
}

该代码适用于Windows，但不适用于Linux：

Exception has occurred: CLR/System.PlatformNotSupportedException
An unhandled exception of type 'System.PlatformNotSupportedException' occurred in
System.Security.Principal.Windows.dll: 'Windows Principal functionality is not supported on this platform.'
  at System.Security.Principal.WindowsIdentity.GetCurrent()
   at adminTst.Program.get_IsAdministrator() in /home/user/adminTst/Program.cs:line 15
   at adminTst.Program.Main(String[] args) in /home/user/adminTst/Program.cs:line 11