Xref: utzoo comp.unix.questions:10317 comp.unix.wizards:12801
Path: utzoo!attcan!uunet!husc6!mailrus!umix!b-tech!zeeff
From: zeeff@b-tech.ann-arbor.mi.us (Jon Zeeff)
Newsgroups: comp.unix.questions,comp.unix.wizards
Subject: Re: what is the 'l' permission?
Keywords: atjobs
Message-ID: <4945@b-tech.ann-arbor.mi.us>
Date: 23 Nov 88 14:29:36 GMT
References: <71@attibr.UUCP> <4594@ptsfa.PacBell.COM> <483@auspex.UUCP>
Reply-To: zeeff@b-tech.ann-arbor.mi.us (Jon Zeeff)
Organization: Branch Technology Ann Arbor, MI
Lines: 19

> >>-r-Sr-lr--   1 root     other        865 Nov 18 09:45 595918800.a
> >>
> >According to the AT&T 3B4000 & 3B15 Computer UNIX System V User's and
> >System Administrator's Reference Manual Section 1 (305-205),
> >the l in the group execution slot means that mandatory locking will
> >occur during access.

Can someone explain "mandatory locking" as used here.  I find that Sys V.3
allows two processes to open and write to a file with 'l' permisssions.






-- 
Jon Zeeff      		  		A month ago I modified broke into
umix!b-tech!zeeff		        your system and modified your kernel.
zeeff@b-tech.ann-arbor.mi.us		Have you proved me wrong?