Article View: comp.sys.amiga.tech
Article #480Re: Soft links vs hard links (was Re: yet another 1.4 request)
From: Peter da Silva
Date: Fri, 14 Jul 1989 03:53
Date: Fri, 14 Jul 1989 03:53
30 lines
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1565 bytes
In article <17573@gryphon.COM>, ddave@pnet02.cts.com (David Donley) writes: > peter@sugar.hackercorp.com (Peter da Silva) writes: > >Intel's OpenNET implements this under Xenix. It calls them redirects. They > >are in every way inferior to symbolic links. > Could you be a little bit more specific? % df / (/dev/dsk/0s1 ): 10 blocks 2517 i-nodes /usr (/dev/dsk/1s3 ): 3878 blocks 11565 i-nodes /usr1 (/dev/dsk/0s3 ): 11996 blocks 11367 i-nodes % du /tmp 45 . % rdr /tmp /usr1/tmp % du /tmp 0 . % something_that_chews_up_lots_of_space % du /tmp 1636 . % cd / % du tmp 45 . When the fs sees "/tmp" at the beginning of a string it textually replaces it with the string "/usr1/tmp". It has to be the exact string (cd /; du tmp had a different effect), it has to be dynamically created (as opposed to symlinks, which are non-volatile), and it involves a table-look-up on every file open. Symbolic links are much cleaner. -- Peter "Have you hugged your wolf today" da Silva `-_-' ...texbell!sugar!peter, or peter@sugar.hackercorp.com 'U`
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arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!tut.cis.ohio-state.edu!gem.mps.ohio-state.edu!ginosko!uunet!nuchat!sugar!peterReferences:
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!tut.cis.ohio-state.edu!gem.mps.ohio-state.edu!ginosko!uunet!nuchat!sugar!peter From: peter@sugar.hackercorp.com (Peter da Silva) Newsgroups: comp.sys.amiga.tech Subject: Re: Soft links vs hard links (was Re: yet another 1.4 request) Message-ID: <4019@sugar.hackercorp.com> Date: 14 Jul 89 03:53:00 GMT References: <17573@gryphon.COM> Organization: Sugar Land Unix - Houston Lines: 30