Dir (DOS command)
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In computer software, specifically the command line interface (CLI) of the DOS operating system, dir is a command used for file and directory listing. It is analogous to the Unix ls command.
dir has existed as a DOS command since the initial release of MS-DOS. It is built in to the DOS command shell; in contrast, ls is a standalone program.
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Syntax
dir <options> <filelist>
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Options
Particular implementations of the DOS operating system may provide more options; these are only the most common.
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/w: Wide list format -
/p: Pause at every page -
/s: Also look in subdirectories -
/a[xx]: Display files with the specified attributes (options may be combined, such as /arh, to show read-only, hidden files) -
/o[xx]: Modifies sort order (options may be combined, such as /ons, to sort name first then size)
Attribute options:
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/aa: Display files with Archive attribute -
/ar: Display files with Read-Only attribute -
/as: Display files with System attribute -
/ah: Display files with Hidden attribute
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/a-a: Display files without Archive attribute -
/a-r: Display files without Read-Only attribute -
/a-s: Display files without System attribute -
/a-h: Display files without Hidden attribute
Sorting options:
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/on: Sort on Name order -
/od: Sort on Date order -
/oe: Sort on Extension order -
/og: Sort on Directory order -
/os: Sort on Size order
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/o-n: Reverse Sort on Name order -
/o-d: Reverse Sort on Date order -
/o-e: Reverse Sort on Extension order -
/o-g: Reverse Sort on Directory order -
/o-s: Reverse Sort on Size order
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Sample listing
This sample is taken from a Windows 2000 implementation of the MS-DOS CLI.
C:\>dir Volume in drive C is MAIN W2K Volume Serial Number is 2326-30E6 Directory of C:\ 11/17/2001 09:40p 257,787 INF000.SWP 04/16/2002 10:12p 446 VIRUSLOG.TXT 05/19/2002 04:34p <DIR> filelib 11/22/2001 05:17p 228 BOOT.BAD 11/22/2001 05:10p 1,663 MSDOS.BAD 12/09/2001 09:07a 8,681 SCANDISK.LOG 11/22/2001 05:40p 1,775 MSDOS.SYS 01/03/2002 12:05a <DIR> eBooks 11/22/2001 04:59p 185 BOOT.w98 11/22/2001 05:12p 253 BOOT.w2k 03/08/2002 02:08p <DIR> WINNT 11/22/2001 02:17p <DIR> Games 11/17/2001 10:04p <DIR> Documents and Settings 05/12/2002 05:57p <DIR> dostemp 10/14/2001 09:51a <DIR> Downloads 08/01/2002 07:15p 160 AUTOEXEC.BAT 12/09/2001 05:24p <DIR> Backup 10/14/2001 09:25a <DIR> MSDOS7 09/30/2002 03:48p <DIR> cygwin 11/25/2002 03:02a <DIR> My Documents 03/08/2002 02:45p <DIR> Program Files 03/31/2002 07:41p <DIR> Temp 9 File(s) 2,674,060 bytes 16 Dir(s) 2,672,476,160 bytes free