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Part VIII: Appendixes > Useful MS-DOS Commands

Useful MS-DOS Commands

Although MS-DOS 8 includes dozens of commands, only a handful are actually useful in day-to-day Windows computing. Virtually all these common commands support wildcards: * stands for any name or extension, whereas ? stands for any character. Using wildcards enables you to accomplish tasks that can't be performed in Explorer, such as renaming the extensions on a group of files.

Note

It helps to understand the distinction between internal and external commands. Internal commands (such as DIR and COPY) are built into Command.com and are always available. External commands (such as XCOPY and FDISK) are contained in their own program files. If you want an external command to be available when you boot with a floppy disk, you must ensure that the program's executable file is on the boot disk.



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