R help - Dec 2009 - Get back to the console with ssh access

Dear R users,

I am currently learning how to work with a new shared computer (a Mac pro) in
our lab, that is dedicated to execute R code for large simulations (over a few
days).

We have a VNC option to remote control the computer, with a shared used session,
but this is not really needed in most of the cases. I would like to do some ssh
access.

This is pretty straigthforward, and I am able to launch commands using

R -e 'source("myfile.R")' &

However, it could be useful to check the advancement of the computation from
time to time, again via ssh.

Is there any way to do this?

Regards,
Timothée Poisot



----------------------------------
Timothée POISOT
-
Institut des Sciences de l'Evolution
Université Montpellier 2, CC 065
Place Eugène Bataillon
34095 Montpellier CEDEX 5
-
Phone	:	(+33)4 67 14 40 61
Fax		:	(+33)4 67 14 40 61
E-mail 	:	tpoisot@um2.fr
Web		:	http://www.timotheepoisot.fr/
----------------------------------


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On Fri, Dec 04, 2009 at 02:23:18AM +0100, Timoth?e Poisot
wrote:
> I am currently learning how to work with a new shared computer (a Mac pro)
in our lab, that is dedicated to execute R code for large simulations (over a
few days).
> 
> We have a VNC option to remote control the computer, with a shared used
session, but this is not really needed in most of the cases. I would like to do
some ssh access.
> 
> This is pretty straigthforward, and I am able to launch commands using
> 
> R -e 'source("myfile.R")' &
> 
> However, it could be useful to check the advancement of the computation
from time to time, again via ssh.
> 
> Is there any way to do this?
On Linux you can type in the terminal (I guess the command will
work in Mac too):

tail -f myfile.Rout

Then you hit Ctrl+C to stop tail from following myfile.Rout.

Another option would be the use of screen (again, this is a *nix
solution that may be available to Mac too). With screen you can
run R interactively detach the session, logout, come back and
reattach the session. But it seems that "tail -f" is what you
really needs since the R script is finished and you just need to
run it.

-- 
Jakson