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From: bcaruthe@us.oracle.com (Bruce Caruthers)
Subject: Re: find goes to NFS disks?
Message-ID: <1994Feb24.082238.28108@oracle.us.oracle.com>
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References: <HSU.94Feb13044616@laphroaig.cs.hut.fi> <103946@cup.portal.com>
Date: Thu, 24 Feb 1994 08:22:38 GMT
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Lines: 34
In article <HSU.94Feb13044616@laphroaig.cs.hut.fi>
>hsu@cs.hut.fi (Heikki Suonsivu) writes:
>
> The following command is not supposed to go to NFS mounted disks (It is
> from default root crontab).
>
> find / -name .nfs\* -mtime +7 -exec rm -f {} \; -o -fstype nfs -prune
>
In article <103946@cup.portal.com> thad@cup.portal.com (Thad P Floryan) writes:
>The line:
>
> find . \( -fstype nfs -prune \) -o \( -newer $REF_DATE -print \) | \
> sort -r > $TAPEDIR/incr$YYMMDDHHMM
>
>is from one of my daily incremental scripts, and it works properly.
I imagine the reason the second one works and the first one doesn't is
that find probably works like a C conditional: from left to right.
So, in the first one, it never gets around to noticing whether the
fstype is mounted, until after the .nfs check, if it ever gets to it.
The second version checks the locality first, and thereby actually
skips NFS mounted volumes.
Cheers,
-bkc
--
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
"Imagination is the one weapon in the war against reality." (Jules de Gaultier)
--
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Bruce Caruthers "Reality doesn't always live up to ideals ...
bcaruthe@Oracle.Com but that doesn't mean that they're not worth having."
bkc@cs.Princeton.Edu -- blurb for "Romantic Ideals", Analog 2/94