Path: utzoo!mnetor!uunet!mcvax!diku!dde!kbe
From: kbe@dde.uucp (Kjeld Borch Egevang)
Newsgroups: comp.cog-eng
Subject: Re: Request for human interface des
Message-ID: <135@Giraf.dde.uucp>
Date: 16 Dec 87 13:36:29 GMT
References: <6304@ncoast.UUCP> <10300004@osiris.cso.uiuc.edu> <13159@beta.UUCP>
Organization: Dansk Data Elektronik A/S, Herlev, Denmark
Lines: 23
Summary: r/w/d/a

In article <13159@beta.UUCP>, jpm@beta.UUCP (James P Mcgee) writes:
> 
> 
> One other permission that I feel is necessary for some applications is an
> append permission.  This differs from write permission in that, while
> nothing that is already there can be changed, new data may be added.
> To add new data to a file, or directory, in Unix requires write permission.
> However, this also allows the user to change information that is already
> present, or to delete it by changing it to null.

I think append and delete-rights have something in common. If you can't
delete a file it shouldn't be allowed to truncate it. That would deal with
e.g.  redirecting with > instead of >>. Perhaps the rule could be that you
could only overwrite data if you have delete-rights. Does anybody know the
how the delete-rights are in VMS ?


   Kjeld Borch Egevang
   Dansk Data Elektronik
   Danmark

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