Date: Thu, 28 Oct 1999 12:05:50 +0200 From: Sheldon Hearn <sheldonh@uunet.co.za> To: "Nathaniel Schein" <nschein@prisa.com> Cc: "Freebsd Questions" <freebsd-questions@FreeBSD.ORG> Subject: Re: Variables / Environments Message-ID: <44769.941105150@axl.noc.iafrica.com> In-Reply-To: Your message of "Wed, 27 Oct 1999 16:56:56 MST." <47dd27ada65e72afb566ded9a0ab629d38179159@(null)>
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On Wed, 27 Oct 1999 16:56:56 MST, "Nathaniel Schein" wrote:
> I am tasked with migrating a version 2.1.0 system to a 3.2 system. We are
> using NIS and AMD. The previous sys admin incorporated an ${ARCH} variable
> into the sysconfig file that became a system or global variable. The
> statement is:
Wow, sysconfig -- that was a while ago. The files /etc/defaults/rc.conf
and /etc/rc.conf replace its functionality.
> ARCH=`uname -s`/`uname -r`/`uname -m` export ARCH
> My questions are, what are the different environments in FreeBSD, what runs
> in them and how does one gain access to them? How does one define a global
> variable?
This would have set the variable ARCH for any script that sucked in
/etc/sysconfig . Your login shell doesn't source /etc/sysconfig, so that
variable isn't set.
> Also, I put the ARCH statement in the rc.conf file and referenced it through
> AMD by:
>
> bin type:=nfs;rhost:=g;rfs:=/usr/people/share/${ARCH}/${key}
>
> this is the same statement used in the 2.1.0 system but the system does not
> expand what is between `and`. The 3.2 system only sees:
AMD isn't a shell script, so it doesn't ``source'' your map file and
shell variable expansion inside the mapfile isn't possible.
Ciao,
Sheldon.
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