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Concept
Dir (command)
Summary
In computing, dir (directory) is a command in various computer operating systems used for and directory listing. It is one of the basic commands to help navigate the . The command is usually implemented as an internal command in the command-line interpreter (shell). On some systems, a more graphical representation of the directory structure can be displayed using the tree command.
The command is available in the command-line interface (CLI) of the operating systems Digital Research CP/M, MP/M, Intel ISIS-II, iRMX 86, Cromemco CDOS, MetaComCo TRIPOS, DOS, IBM/Toshiba 4690 OS, IBM OS/2, Microsoft Windows, Singularity, Datalight ROM-DOS, ReactOS, GNU, AROS and in the DCL command-line interface used on DEC VMS, RT-11 and RSX-11. It is also supplied with OS/8 as a CUSP (Commonly-Used System Program).
The dir command is supported by Tim Paterson's SCP 86-DOS. On MS-DOS, the command is available in versions 1 and later. It is also available in the open source MS-DOS emulator DOSBox. MS-DOS prompts "Abort, Retry, Fail?" after being commanded to list a with no diskette in the drive.
The numerical computing environments MATLAB and GNU Octave include a dir
function with similar functionality.
List all files and directories in the current working directory.
dir
List any s and s ( ".txt" or ".bat").
dir *.txt *.bat
Recursively list all files and directories in the specified directory and any subdirectories, in wide format, pausing after each screen of output. The directory name is enclosed in double-quotes, to prevent it from being interpreted is as two separate command-line options because it contains a whitespace character.
dir /s /w /p "C:\My Documents"
List any NTFS junction points:
C:\Users>dir /ash
Volume in drive C is OS.
Volume Serial Number is xxxx-xxxx
Directory of C:\Users
12/07/2019 02:30 AM All Users [C:\ProgramData]
12/07/2019 02:30 AM Default User [C:\Users\Default]
12/07/2019 02:12 AM 174 desktop.ini
1 File(s) 174 bytes
2 Dir(s) 332,659,789,824 bytes free
dir is not a Unix command; Unix has the analogous ls command instead.
Official source
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