Source code for trash.cs

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using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Linq;
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using Microsoft.VisualBasic.FileIO;
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namespace RobvanderWoude
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{
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	internal class Trash
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	{
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		static readonly string progver = "1.01";

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		static int Main( string[] args )
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		{
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			bool continueonerrors = false;
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			bool debugmode = false;
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			bool verbose = false;
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			UIOption dialogs = UIOption.OnlyErrorDialogs;

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			int rc = 0;
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			int deleted = 0;
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			int failed = 0;
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			if ( args.Length == 0 || args.Contains( "/?" ) )

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			{
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				return ShowHelp( );
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			}
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			foreach ( string arg in args )
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			{
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				if ( arg.ToUpper( ) == "/C" )
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				{
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					if ( continueonerrors )
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					{
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						return ShowHelp( "Duplicate command line switch /C" );

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					}
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					continueonerrors = true;
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				}
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				else if ( arg.ToUpper( ) == "/D" )
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				{
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					if ( debugmode )
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						return ShowHelp( "Duplicate command line switch /D" );

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					}
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					debugmode = true;
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				}
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				else if ( arg.ToUpper( ) == "/V" )
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				{
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					if ( verbose )
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						return ShowHelp( "Duplicate command line switch /V" );

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					}
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					verbose = true;
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					dialogs = UIOption.AllDialogs;
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				}
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				else if ( arg[0] == '/' )
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				{
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					return ShowHelp( "Invalid command line switch {0}", arg );

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				}
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				else if ( !Directory.Exists( Directory.GetParent( arg ).FullName ) )

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				{
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					if ( continueonerrors )
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					{
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						rc = 1;
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					}
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					else
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					{
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						return ShowHelp( "File \"{0}\" not found", arg );

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					}
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				}
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			}
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			verbose = verbose || debugmode;
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			List<string> filestodelete = new List<string>( );

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			foreach ( string arg in args )
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			{
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				if ( arg[0] != '/' )
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				{
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					DirectoryInfo directory = Directory.GetParent( arg );

					FileInfo[] files = directory.GetFiles( Path.GetFileName( arg ) );

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					foreach ( FileInfo file in files )
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					{
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						filestodelete.Add( file.FullName );

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					}
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				}
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			}
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			if ( filestodelete.Count == 0 )
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			{
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				if ( continueonerrors )
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				{
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					rc = 1;
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					Console.WriteLine( "No files to delete" );

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				}
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				else
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				{
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					return ShowHelp( "No files to delete" );

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				}
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			}
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			foreach ( string file in filestodelete )

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			{
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				try
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				{
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					if ( verbose )
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						Console.Write( "Deleting \"{0}\" . . . ", file );

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					}
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					if ( !debugmode )
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					{
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						FileSystem.DeleteFile( file, dialogs, RecycleOption.SendToRecycleBin );

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					}
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					if ( verbose )
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					{
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						Console.ForegroundColor = ConsoleColor.Green;

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						Console.WriteLine( "success" );
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						Console.ResetColor( );
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					}
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					deleted++;
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				}
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				catch ( Exception e )
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				{
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					if ( continueonerrors )
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					{
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						rc = 1;
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						if ( verbose )
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						{
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							Console.ForegroundColor = ConsoleColor.Red;

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							Console.WriteLine( "failed" );
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							Console.ResetColor( );
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						}
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						failed++;
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					}
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					else
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					{
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						return ShowHelp( e.Message );
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					}
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				}
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			}
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			if ( verbose )
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			{
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				if ( deleted == 1 )
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				{
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					Console.Write( "\nSuccessfully deleted 1 file, " );

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				}
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				else
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				{
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					Console.Write( "\nSuccessfully deleted {0} files, ", deleted );

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				}
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				if ( failed == 1 )
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				{
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					Console.WriteLine( "1 file failed" );

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				}
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				else
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				{
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					Console.WriteLine( "{0} files failed", failed );

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				}
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			}
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			return rc;
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		}
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		public static int ShowHelp( params string[] errmsg )

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		{
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			#region Error Message
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			if ( errmsg.Length > 0 )
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			{
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				List<string> errargs = new List<string>( errmsg );

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				errargs.RemoveAt( 0 );
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				Console.Error.WriteLine( );
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				Console.ForegroundColor = ConsoleColor.Red;

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				Console.Error.Write( "ERROR:\t" );
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				Console.ForegroundColor = ConsoleColor.White;

				Console.Error.WriteLine( errmsg[0], errargs.ToArray( ) );

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				Console.ResetColor( );
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			}
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			#endregion Error Message
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			#region Help Text
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```
			/*
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			Trash.exe,  Version 1.01
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			Send specified file(s) to the recycle bin

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```

			Usage:    TRASH.EXE  filespec  [ filespec  [ ... ] ] ]  [ options ]

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```

			Where:    filespec   file(s) to be sent to the recycle bin (wildcards allowed)

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```

			Options:  /C         Continue on errors (default: abort on first error)

			          /D         Debug mode: files are listed only, not deleted

			          /V         Verbose output: show file name(s), progress and error

			                     dialogs, and summary (default: error dialogs only)

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```

			Note:     Return code ("ErrorLevel"):

			          * successful deletion of all files specified:                             0

			          * invalid directory, failure to delete or no matching file (with    /C):  1

			          * invalid directory, failure to delete or no matching file (without /C): -1

			          * invalid command line argument:                                         -1

```
 
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```
			Written by Rob van der Woude
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			https://www.robvanderwoude.com
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			*/
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			#endregion Help Text
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			#region Display Help Text
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			Console.Error.WriteLine( );
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			Console.Error.WriteLine( "Trash.exe,  Version {0}", progver );

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			Console.Error.WriteLine( "Send specified file(s) to the recycle bin" );

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			Console.Error.WriteLine( );
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			Console.Error.Write( "Usage:    " );
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			Console.ForegroundColor = ConsoleColor.White;

			Console.Error.WriteLine( "TRASH.EXE  filespec  [ filespec  [ ... ] ] ]  [ /V ]" );

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			Console.ResetColor( );
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			Console.Error.WriteLine( );
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			Console.Error.Write( "Where:    " );
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			Console.ForegroundColor = ConsoleColor.White;

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			Console.Error.Write( "filespec" );
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			Console.ResetColor( );
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			Console.Error.WriteLine( "   file(s) to be sent to the recycle bin (wildcards allowed)" );

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			Console.Error.WriteLine( );
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			Console.Error.Write( "Options:  " );
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			Console.ForegroundColor = ConsoleColor.White;

			Console.Error.Write( "/C         C" );

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			Console.ResetColor( );
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			Console.Error.WriteLine( "ontinue on errors (default: abort on first error)" );

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			Console.ForegroundColor = ConsoleColor.White;

			Console.Error.Write( "          /D         D" );

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			Console.ResetColor( );
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			Console.Error.WriteLine( "ebug mode: files are listed only, not deleted" );

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			Console.ForegroundColor = ConsoleColor.White;

			Console.Error.Write( "          /V         V" );

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			Console.ResetColor( );
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			Console.Error.WriteLine( "erbose output: show file name(s), progress and error" );

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			Console.Error.WriteLine( "                     dialogs, and summary (default: error dialogs only)" );

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			Console.Error.WriteLine( );
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			Console.Error.WriteLine( "Note:     Return code (\"ErrorLevel\"):" );

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			Console.Error.WriteLine( "          * successful deletion of all files specified:                             0" );

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			Console.Error.Write( "          * invalid directory, failure to delete or no matching file (with    " );

			Console.ForegroundColor = ConsoleColor.White;

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			Console.Error.Write( "/C" );
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			Console.ResetColor( );
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			Console.Error.WriteLine( "):  1" );
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			Console.Error.Write( "          * invalid directory, failure to delete or no matching file (without " );

			Console.ForegroundColor = ConsoleColor.White;

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			Console.Error.Write( "/C" );
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			Console.ResetColor( );
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			Console.Error.WriteLine( "): -1" );
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			Console.Error.WriteLine( "          * invalid command line argument:                                         -1" );

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			Console.Error.WriteLine( );
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			Console.Error.WriteLine( "Written by Rob van der Woude" );

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			Console.Error.WriteLine( "https://www.robvanderwoude.com" );

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			#endregion Display Help Text
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			return -1;
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		}
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	}
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}
```