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Article #5324Re: Hiding Files?
From: brown
Date: Wed, 08 Jan 1986 15:52
Date: Wed, 08 Jan 1986 15:52
36 lines
1925 bytes
1925 bytes
In article <1236@pucc-i> aic@pucc-i.UUCP (Craig Norborg aka Doc Pierce) writes:
>
> For security purposes at a place I work, we were wondering if it was
>possible in ms-dos to make files so that people couldn't write onto them.
>One possible way we thought of was just to make the files so they can't
>see them by "hiding" them like some of the system files. I know write
>protecting a floppy is one way, but this doesn't help with a hard drive.
>Any suggestions/help would be greatly appreciated.
One way is to use the PC-DOS ATTRIB command, which allows you to change the
Read Only attribute. You could also get Norton's Utilites, 3.0+, and use
the sector r/w capabilities and manual change the directory entry so that you
can hide and read protect the file.
A MS-DOS directory entry is like this:
Bytes 0-7 Filename
8-10 Extension
11 File Attribute
01h read only
02h hidden file
04h system file
08h filename+ext = volume label (root directory only)
10h subdirectory name
20h archive bit
You add up the bits in byte 11 to get the combination you want.
Hope this helps.
--
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Mr. Video seismo!uwvax!nicmad!brown
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Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.2 9/18/84; site nicmad.UUCP Path: arc1-ca.pugleaf.net!utzoo!linus!philabs!cmcl2!harvard!uwvax!astroatc!nicmad!brown From: brown@nicmad.UUCP Newsgroups: net.micro.pc Subject: Re: Hiding Files? Message-ID: <501@nicmad.UUCP> Date: Wed, 8-Jan-86 10:52:44 EST Article-I.D.: nicmad.501 Posted: Wed Jan 8 10:52:44 1986 Date-Received: Sat, 11-Jan-86 05:34:41 EST References: <1236@pucc-i> Reply-To: brown@nicmad.UUCP (Mr. Video) Organization: Nicolet Instrument Corp. Madison WI Lines: 36 Keywords: files, security