[R-SIG-Mac] Failure of CLI with .Rprofile on Mac OS X

[peter dalgaard]

On 21 Sep 2014, at 01:25 , David Winsemius <dwinsemius at comcast.net> wrote:

> 
> Peter;
> 
> Do you know whether the "PWD" value in the result from  Sys.getenv() is supposed to point at the working directory of R started from the command line?
> 
> -- 
> David.
> 

Yes, that's standard Unix shell behavior:

Peter-Dalgaards-MacBook-Air:~ pd$ cd r-devel/BUILD 
Peter-Dalgaards-MacBook-Air:BUILD pd$ echo $PWD
/Users/pd/r-devel/BUILD

I.e. it is done by the shell, R just inherits it. Notice that it is just a variable tracking the result of 'cd'. You can set it, but that doesn't actually do anything, except for things that use the PWD variable directly, like the shell prompt

Peter-Dalgaards-MacBook-Air:BUILD pd$ export PWD=/foo/bar
Peter-Dalgaards-MacBook-Air:bar pd$ pwd
/Users/pd/r-devel/BUILD


-- 
Peter Dalgaard, Professor,
Center for Statistics, Copenhagen Business School
Solbjerg Plads 3, 2000 Frederiksberg, Denmark
Phone: (+45)38153501
Email: pd.mes at cbs.dk  Priv: PDalgd at gmail.com