Windows administrators can accomplish many of their routine tasks much more quickly by using the command line (similar to the command line of DOS or Unix-based systems) than by going through the graphical user interface that most users associate with Windows. This text documents the Windows command mode. It is designed for system administrators, but should also be useful to many users. It includes most available Windows 2000 commands, as well as the most useful system administration command-line utilities from the Resource Kit. Weeded out of this book are Windows commands and command options that are obscure, obsolete, broken, unacceptably insecure, or inadvisable, as well a few special purpose classes of commands. Whenever several utilities perform essentially identical tasks, the text only includes the best of them. Commands are grouped according to their purpose and function; within a group, commands are arranged alphabetically. Options for each command are grouped by function and ordered by importance. The book complements "Windows 2000 Administration in a Nutshell" by conveying the information typical of O'Reilly's companion Pocket Reference series. It is a concise reference to Windows 2000 commands and command-line utilities.