các lệnh attrib của Microsoft DOS

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Quick links About attrib Availability Attrib syntax Examples Extended Information About attrib Attrib allows a user to change the properties of a specified file. Using attrib...

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Nội dung Text: các lệnh attrib của Microsoft DOS

Microsoft DOS attrib command Index Quick links Availability About attrib The attrib.exe command is Category: Availability an external command that is MSDOS Attrib syntax available in the below Examples Microsoft operating systems. Companies: Extended Information Microsoft MSDOS 3.0 and above Windows 95 About attrib Related Windows 98 Pages: Attrib allows a user to Windows ME Operating change the properties of a systems Windows NT specified file. Using attrib, Resolved Windows 2000 the user has the capability of Windows XP changing the file to have any Were you able of the below attributes. to locate the answer to your Readonly allowing the file questions? to be only viewed and not written to. Yes • Archived allowing No • Microsoft backup and other backup programs to know what files to backup. Hidden making the file invisible to standard users. System making the file an important system file.
Syntax Microsoft Windows 95, 98, and ME syntax Displays or changes file attributes. ATTRIB [+R | R] [+A | A] [+S | S] [+H | H] [[drive:][path]filename] [/S] + Sets an attribute. Clears an attribute. R Readonly file attribute. A Archive file attribute. S System file attribute. H Hidden file attribute. Processes files in all directories in the /S specified path. Microsoft Windows 2000 and Windows XP syntax Displays or changes file attributes. ATTRIB [+R | R] [+A | A ] [+S | S] [+H | H] [[drive:] [path] filename] [/S [/D]] + Sets an attribute. Clears an attribute. R Readonly file attribute. A Archive file attribute. S System file attribute. H Hidden file attribute. Processes files in all directories in the /S specified path. /D Process folders as well. Microsoft Windows 2000 and Windows XP recovery console syntax
Note: The below options are the available options in the Windows recovery console. Changes attributes on one file or directory. ATTRIB R | +R | S | +S | H | +H | C | +C filename + Sets an attribute. Clears an attribute. R Readonly file attribute. S System file attribute. H Hidden file attribute. C Compressed file attribute. Examples attrib Typing attrib by itself will display all files in the current directory and each of their attributes. If any file is hidden it will also display those files. attrib +r autoexec.bat Add the readonly attribute to the autoexec.bat file so it cannot be modified until the read only attribute is taken off. This is helpful for important system files or any other file that you do not want to have mistakenly edited or changed by another program. attrib +h config.sys Add the hidden attribute to the config.sys file causing it to be not be seen by the average user. attrib h config.sys This command will do the opposite of the above command. Instead of hiding the file it will unhide the file if hidden.
Additional examples and information about displaying hidden files in MS • DOS can be found on document CH001039. Extended information See our File attributes computer dictionary definition for additional information about file attributes. DOS directory file attribute bit position and Hex Value: Bit Positions He Description 7 6 5 4 3 2 1 0 x 0 0 0 0 0 0 0 1 01h Read Only file 0 0 0 0 0 0 1 0 02h Hidden file 0 0 0 0 0 1 0 0 04h System file 0 0 0 0 1 0 0 0 08h Volume Label 0 0 0 1 0 0 0 0 10h Subdirectory 0 0 1 0 0 0 0 0 20h Archive 0 1 0 0 0 0 0 0 40h Reserved 1 0 0 0 0 0 0 0 80h Reserved Examples 0 0 1 0 0 0 0 1 21h Read Only, Archive 0 0 1 1 0 0 1 0 32h Hidden, Subdirectory, Archive 0 0 1 0 0 1 1 1 27h Read Only, Hidden, Archive