Article View: comp.bugs.4bsd
Article #1099Re: Hard Links between UNIX Utility Programs
From: Leslie Mikesell
Date: Wed, 27 Jul 1988 03:02
Date: Wed, 27 Jul 1988 03:02
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In article <184@chip.UUCP> mparker@chip.UUCP (M. D. Parker) writes: >I have noticed the tendency for some programs in UNIX to have hard links. >The program operation is then determined by the name it was invoked by. >As a system administrator this makes it very difficult for me to restrict >one program without restricting all their linked set. And the problems >is not just simply removing the hard link, since experimentations have >proved that symbolic links do the same. Thereby preventing restriction >again. The file permissions are stored in the inodes, and to get another inode you have to duplicate the data... Starting with link-a and link-b as two different links to the same file: rm link-b cp link-a link-b Now the files are no longer linked and you can chown/chmod independently. Unfortunately, you also use extra disk space for each copy and do not gain the advantage of shared-text when multiple copies are running when invoked by the different names. Les Mikesell
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!attcan!uunet!lll-winken!lll-tis!ames!ncar!oddjob!gargoyle!att!ihnp4!chinet!les From: les@chinet.chi.il.us (Leslie Mikesell) Newsgroups: comp.bugs.4bsd,comp.bugs.misc,comp.bugs.sys5 Subject: Re: Hard Links between UNIX Utility Programs Message-ID: <6103@chinet.chi.il.us> Date: 27 Jul 88 03:02:30 GMT References: <184@chip.UUCP> Reply-To: les@chinet.chi.il.us (Leslie Mikesell) Organization: Chinet - Public Access Unix Lines: 22