[Rd] OS calls

[Prof Brian D Ripley]

On Wed, 21 Jun 2000, Paul Gilbert wrote:

> Brian
> 
> >> local.host.netname <- function() {system.call("uname -n")}
> >> whoami <- function(){system.call("whoami")} # return user id (for mail)
> 
> >Those are not even meaningful on vanilla (non-networked) Windows systems. I
> >am not really sure why one would want them in general R code.
> 
> I thought whoami was meanful on Windows NT even without a network, but in any

NT, yes, Win 9x, no, and Win 9x is > 90% of the market.

> case it is true that I want it for a network environment. You could put in
> somewhat meaningful defaults like "localhost" and "root", but I think most
> people are on a network these days.

I doubt it. DUN does not count as a network for these purposes, and indeed
the local and network IDs can be different even on NT (and frequently are).

-- 
Brian D. Ripley,                  ripley@stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272860 (secr)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595

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