Date: Sat, 20 Apr 2002 00:08:12 +0200 From: Paul Everlund <tdv94ped@cs.umu.se> To: mpd <mpd@rochester.rr.com> Cc: freebsd-questions@FreeBSD.ORG Subject: Re: cat: A bug or just as it should be? Message-ID: <3CC0954C.18B62401@cs.umu.se> References: <3CC08E8E.B5EEEA90@cs.umu.se> <20020419174541.A47020@rochester.rr.com>
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mpd wrote:
>
> On Fri, Apr 19, 2002 at 11:39:26PM +0200, Paul Everlund wrote:
> > Hi all!
> >
> > I have the following directory structure:
> > /usr/home/home/'users'/'users files'
> >
> > When in /usr/home/home, as root, doing 'cat *'
> > I get very strange output. It's a lot of not
> > viewable characters, but also file names of
> > existing files in /usr/home/home/'users' and
> > in /usr/home/home/'users'/'users files'. The
> > strangest of all is that even files that has
> > been removed shows up.
> >
> > Is this reproduceable on other computers run-
> > ning 4.5-RELEASE as well? Is it a bug in cat,
> > or is this a normal behaveiour?
>
> That's what happens when you cat directories
> or binary files. The removed filenames may just
> be from history files or other things that
> keep track of things like that.
>
> mike
It can't be history, as there for example are no
.history in /usr/home. Doing 'ls -l' in this dir-
ectory yields the following:
fw# ls -l
total 2
drwxr-xr-x 10 root wheel 512 20 Mar 01:20 home
fw#
Doing a 'cat *' there gives the following result
(edited somewhat by me: "UUU" means an active user
and "uuu" means an user who has been removed):
hE?
??.<8?
??..· "UUU"yF?
??"uuu"·???"UUU"-pF?¶?
"UUU"fF????"UUU"lQ-gF????"UUU"mQ-:????"UUU"^F?
??w
ww¦C?h?? "UUU"-C?T??"uuu"fw#
Those "uuu" users, removed ones, are in no .his-
tory as there are no history file in the directory
/usr/home.
Best regards,
Paul
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