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For example, in DOS 5, if the current directory is C:\TEMP, then TRUENAME command.com will display C:\TEMP\COMMAND.COM (which does not exist), not C:\DOS\COMMAND.COM (which does and is in the PATH). This command displays the UNC pathnames of mapped network or local CD drives. This command is an undocumented DOS command.
DR DOS 6.0 includes an implementation of the SUBST command. [4] The command is also available in FreeDOS [5] and PTS-DOS. [6] The Windows SUBST command is available in supported versions of the command line interpreter cmd.exe. [7] In Windows NT, SUBST uses DefineDosDevice() to create the disk mappings. The JOIN command is the "opposite" of ...
The category Internal DOS commands deals with articles about DOS commands built into the command processor (COMMAND.COM, 4DOS.COM, NDOS.COM, DOSPLUS.COM, ...
The category DOS commands deals with articles related to internal and external commands supported by members of the family of DOS compatible operating systems for IBM PC compatible computers, such as MS-DOS, PC DOS, DR DOS, Concurrent DOS, Multiuser DOS, REAL/32, FlexOS, Novell DOS, PalmDOS, OpenDOS, FreeDOS, RxDOS, ROM-DOS, Embedded DOS, etc.
The command is analogous to the Stratus OpenVOS change_current_dir command. [9] cd is frequently included built directly into a command-line interpreter. This is the case in most of the Unix shells (Bourne shell, tcsh, bash, etc.), cmd.exe on Microsoft Windows NT/2000+ and Windows PowerShell on Windows 7+ and COMMAND.COM on DOS/ Microsoft ...
MS-DOS/PC DOS versions 4.0 and earlier assign letters to all of the floppy drives before considering hard drives, so a system with four floppy drives would call the first hard drive E:. Starting with DOS 5.0, the system ensures that drive C: is always a hard disk, even if the system has more than two physical floppy drives.
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MS-DOS / PC DOS and some related disk operating systems use the files mentioned here. System Files: [1] IO.SYS (or IBMBIO.COM): This contains the system initialization code and builtin device drivers; MSDOS.SYS (or IBMDOS.COM): This contains the DOS kernel. Command-line interpreter (Shell): COMMAND.COM: This is the command interpreter.