StrangeTools/CreateTimePrefixRen/Program.cs

// See https://aka.ms/new-console-template for more information
Console.WriteLine("Hello, World!");
Console.WriteLine();

foreach (var arg in args)
{
    var fi = new FileInfo(arg);
    var prefix = fi.CreationTime.ToString("yyMMddHHmm");
    if(fi.Name.StartsWith(prefix)) continue;
    var dir = Path.GetDirectoryName(fi.FullName);
    var name = Path.GetFileName(fi.FullName);
    var to = Path.Combine(dir,$"{prefix}-{name}");
    Console.WriteLine($"{prefix} - {name} @ {dir}");
    fi.MoveTo(to);
}

Console.WriteLine();
Console.Write("Done. Press ENTER to exit...");
Console.ReadLine();