From the command line, how can I tell if a reboot is pending?

Question

Hi All,

From the command line, how can I tell if a reboot is pending or delayed?

Many thanks,
-T

Answer 1

StackOver flow has some PowerShell suggestions: https://stackoverflow.com/questions/47867949/how-can-i-check-for-a-pending-reboot#:~:text=Pending%20reboot%20can%20be%20caused%20by%20variety%20of,Install%20Install-Module%20-Name%20PendingReboot%20%23%20Run%20Test-PendingReboot%20-Detailed

Answer 2

I made a utility that might be helpfull

//
// RestartOrShutdown.cs, Aad Slingerland, oktober 2024.
// install-package System.Diagnostics.EventLog
// See also:
// https://morgantechspace.com/2013/08/convert-datetime-to-ticks-and-ticks-to.html
// Limitations:
// English locale only, but the texts "restart" and "power off" can be changed to another locale.  
//
using System.Diagnostics;
namespace RestartOrShutdown;
internal class Program
{
    static int Main(string[] args)
    {
        int rc = 0;
        int minutes = 1;
        try
        {
            if (args.Length > 0)
            {
                minutes = int.Parse(args[0]);
            }
#pragma warning disable CA1416 // Validate platform compatibility
            EventLog syslog = new("System");
            //
            DateTime _now = DateTime.Now;
            long minus = 10000000;           // one second in ticks
            DateTime _past = _now.AddTicks(-(minus * 60 * minutes));
            //
            Debug.WriteLine(_now.Ticks);
            Debug.WriteLine(_past.Ticks);
            //
            var entries = syslog.Entries.Cast<EventLogEntry>()
                .Where(x => x.TimeWritten.Ticks > _past.Ticks && x.EventID == 1074)
                .ToList();
#pragma warning restore CA1416 // Validate platform compatibility
            //
            foreach (EventLogEntry e in entries)
            {
                Debug.WriteLine(e.TimeWritten.Ticks);
                Debug.WriteLine(e.Message);
                if (e.Message.Contains("restart"))
                {
                    rc = 1;
                }
                else if (e.Message.Contains("power off"))
                {
                    rc = 2;
                }
            }
        }
        catch (System.FormatException)
        {
            Usage();
            rc = 9;
        }
        Console.WriteLine($"Returncode={rc}");
        return rc;
    }
    static void Usage()
    {
        Console.WriteLine(@"
Usage: RestartOrShutdown [minutes]
Queries the Operating System wether it is in the process of Restart or Shutdown.
Return code 0 = neither.
Return code 1 = Restarting in progress.
Return code 2 = Shutdown in progress.
Return code 9 = invalid argument value. 
The argument [minutes] defaults to 1 minute.
The argument [minutes] tells this program how far to look back in the Windows 
System Event log for a record with EventID 1074.");
    }
}