mono/C# on Raspberry Pi, get system info

Example to get system info with mono/C# run on Raspberry Pi, using System.Environment class.

using System;
using System.Collections;

namespace Csharp_SysInfo
{
    class MainClass
    {
        public static void Main (string[] args)
        {
            printSysInfo ();
        }

        /*
         * reference:
         * https://msdn.microsoft.com/en-us/library/system.environment.aspx
         */
        private static void printSysInfo ()
        {
            String str;
            String nl = Environment.NewLine;
            //
            Console.WriteLine ();
            Console.WriteLine ("-- Environment members --");

            //  Invoke this sample with an arbitrary set of command line arguments.
            Console.WriteLine ("CommandLine: {0}", Environment.CommandLine);

            String[] arguments = Environment.GetCommandLineArgs ();
            Console.WriteLine ("GetCommandLineArgs: {0}", String.Join (", ", arguments));

            //  <-- Keep this information secure! -->
            Console.WriteLine ("CurrentDirectory: {0}", Environment.CurrentDirectory);

            Console.WriteLine ("ExitCode: {0}", Environment.ExitCode);

            Console.WriteLine ("HasShutdownStarted: {0}", Environment.HasShutdownStarted);

            //  <-- Keep this information secure! -->
            Console.WriteLine ("MachineName: {0}", Environment.MachineName);

            Console.WriteLine ("NewLine: {0}  first line{0}  second line{0}  third line",
                Environment.NewLine);

            Console.WriteLine ("OSVersion: {0}", Environment.OSVersion.ToString ());

            Console.WriteLine ("StackTrace: '{0}'", Environment.StackTrace);

            //  <-- Keep this information secure! -->
            Console.WriteLine ("SystemDirectory: {0}", Environment.SystemDirectory);

            Console.WriteLine ("TickCount: {0}", Environment.TickCount);

            //  <-- Keep this information secure! -->
            Console.WriteLine ("UserDomainName: {0}", Environment.UserDomainName);

            Console.WriteLine ("UserInteractive: {0}", Environment.UserInteractive);

            //  <-- Keep this information secure! -->
            Console.WriteLine ("UserName: {0}", Environment.UserName);

            Console.WriteLine ("Version: {0}", Environment.Version.ToString ());

            Console.WriteLine ("WorkingSet: {0}", Environment.WorkingSet);

            //  No example for Exit(exitCode) because doing so would terminate this example. 

            //  <-- Keep this information secure! -->
            String query = "My system drive is %SystemDrive% and my system root is %SystemRoot%";
            str = Environment.ExpandEnvironmentVariables (query);
            Console.WriteLine ("ExpandEnvironmentVariables: {0}  {1}", nl, str);

            Console.WriteLine ("GetEnvironmentVariable: {0}  My temporary directory is {1}.", nl,
                Environment.GetEnvironmentVariable ("TEMP"));

            Console.WriteLine ("GetEnvironmentVariables: ");
            IDictionary environmentVariables = Environment.GetEnvironmentVariables ();
            foreach (DictionaryEntry de in environmentVariables) {
                Console.WriteLine ("  {0} = {1}", de.Key, de.Value);
            }

            Console.WriteLine ("GetFolderPath: {0}", 
                Environment.GetFolderPath (Environment.SpecialFolder.System));

            String[] drives = Environment.GetLogicalDrives ();
            Console.WriteLine ("GetLogicalDrives: {0}", String.Join (", ", drives));
        }
    }
}