The first is interactive mode, in which the user types commands which are then executed immediately. Programs launched from COMMAND.COM are DOS programs that use the DOS API to communicate with the disk operating system.Īs a shell, COMMAND.COM has two distinct modes of operation. The compatible command processor under FreeDOS is sometimes also named FreeCom.ĬOMMAND.COM is a DOS program. The COMMAND.COM filename was also used by Template:Ill (DCP), an MS-DOS derivative by the former East German VEB Robotron. It has an additional role as the usual first program run after boot (init process), hence being responsible for setting up the system by running the AUTOEXEC.BAT configuration file, and being the ancestor of all processes.ĬOMMAND.COM's successor on OS/2 and Windows NT systems is cmd.exe, although COMMAND.COM is available in virtual DOS machines on IA-32 versions of those operating systems as well. In the case of DOS, it is the default user interface as well.
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