The Command Prompt available in Windows 8 contains access to around 230 command line commands. The commands available in Windows 8 are used for a variety of purposes, including diagnosing and correcting certain Windows problems, automating tasks, and much more.
Note: A number of Windows 8 Command Prompt commands are very similar to MS-DOS commands. However, the Command Prompt in Windows 8 is not MS-DOS so the commands are not correctly referred to as MS-DOS commands. I do have a list of DOS commands if you really are using MS-DOS and are interested.
You can also see every command ever available, from MS-DOS through Windows 8, in my list of Command Prompt commands or check out a one-page table without the details here. If you're mainly interested in changes in command availability from Windows 7, see New (and Removed) Commands in Windows 8.
Below is a complete list of commands, sometimes called CMD commands, available from the Command Prompt in Windows 8:
The append command can be used by programs to open files in another directory as if they were located in the current directory.
The append command is not available in 64-bit versions of Windows 8.
ArpThe arp command is used to display or change entries in the ARP cache.
AssocThe assoc command is used to display or change the file type associated with a particular file extension.
AttribThe attrib command is used to change the attributes of a single file or a directory.
AuditpolThe auditpol command is used to display or change audit policies.
BcdbootThe bcdboot command is used to copy boot files to the system partition and to create a new system BCD store.
BcdeditThe bcdedit command is used to view or make changes to Boot Configuration Data.
BdehdcfgThe bdehdcfg command is used to prepare a hard drive for BitLocker Drive Encryption.
The bitsadmin command is used to create, manage, and monitor download and upload jobs.
While the bitsadmin command is available in Windows 8, you should know that it is being phased out. The BITS PowerShell cmdlets should be used instead.
The bootcfg command is used to build, modify, or view the contents of the boot.ini file, a hidden file that is used to identify in what folder, on which partition, and on which hard drive Windows is located.
The bootcfg command was replaced by the bcdedit command beginning in Windows Vista. Bootcfg is still available in Windows 8 but it serves no real value since boot.ini is not used.