HOSTNAME: environment variable or not?

[Henry Spencer]

On Fri, 18 Feb 2005, bob wrote:
> > A variable which is set but *not* exported is visible within the shell
> > that set it -- and therefore gets substituted when that shell interprets a
> > command using $ in an argument -- but is not passed to the commands the
> > shell runs, so getenv() in a command won't find it...
>
> PS.
> What would be the C program call to pickup set variables? ie. a variable set 
> in the shell from which you launched your C program.

There isn't one.  If it's not exported, only the shell knows about it; it
is not available within commands run by the shell. 

                                                          Henry Spencer
                                                       henry-lqW1N6Cllo0sV2N9l4h3zg at public.gmane.org

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