/// <summary>
 /// Creates a concrete FileUtilities instance
 /// </summary>
 public FileUtilitiesUnix()
 {
     PosixDeleteMode = PosixDeleteMode.RunFirst;
 }
 /// <summary>
 /// Creates a concrete FileUtilities instance
 /// </summary>
 public FileUtilitiesUnix()
 {
     m_fileSystem    = new Unix.FileSystemUnix();
     PosixDeleteMode = PosixDeleteMode.RunFirst;
 }