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From: Crist Clark (crist.clarkGLOBALSTAR.COM)
Date: Fri Apr 13 2001 - 19:19:25 CDT
Darren Moffat wrote:
> The default installation lists only those dirs (/usr/sbin:/usr/bin) root
> needs to run the admin tools shipped with the system. root doesn't need
> to run stuff from /usr/openwin/bin and /usr/dt/bin (or at least not
> regularly enough that they should be in your path.
> Was this a general question or was there a particular program that
> you needed to use that wasn't in root's path ?
This is not precisely on the topic, but it reminds me about something
I've always wondered...
Why is /sbin not in root's default path? And if I add it (since it
should always be local and only contains administrative commands that
seems reasonable) should it go before or after /usr/sbin? I wonder
$ ls /sbin /usr/sbin | sort | uniq -d
The two overlap on some very important commands, and accept for [u]mountall
and fdisk, they are not the same. Are the /usr/sbin ones wrappers? They all
But /sbin does contain a couple of commands that /usr/sbin does not,
$ ls /sbin > /tmp/ls.sbin
$ ls /usr/sbin | diff - /tmp/ls.sbin | grep '>'
The most interesting ones being uname, which again has a smaller different
companion in /usr/bin (not /usr/sbin), and su (which is a symlink to
/usr/bin) and su.static.
My guess is that there are hysterical raisins for all of this, but it
all seems a bit confusing to the uninitiated having the same command
in different locations.
-- Crist J. Clark Network Security Engineer crist.clarkglobalstar.com Globalstar, L.P. (408) 933-4387 FAX: (408) 933-4926
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