R process must die - can I save history?

thanks Dr. R. this will come in handy in the future as I have a knack for
hanging R.
On Oct 2, 2012 12:01 PM, "Prof Brian Ripley" <ripley at stats.ox.ac.uk> wrote:

On 02/10/2012 18:29, Bert Gunter wrote:

?history

in a fresh R session, to see what might be possible. I'll bet the
answer is, "No, you're screwed," though. Nevertheless, maybe Linux
experts can save you.

Maybe not.  On a Unix-alike see ?Signals.  If you can find the pid of the
R process and it is still running (and not e.g. suspended),

kill -USR1 <pid>

will save the workspace and history.

May the Force be with you.

-- Bert

On Tue, Oct 2, 2012 at 10:17 AM, Mike Miller <mbmiller+l at gmail.com>
wrote:

I connected from my desktop Linux box to a Linux server using ssh in an
xterm, but that xterm was running in Xvnc.  I'm running R on the server
in
that xterm (over ssh).  Something went wrong with Xvnc that has caused
it to
hang, probably this bug:

https://bugs.launchpad.net/**ubuntu/+source/vnc4/+bug/**819473<https://bugs.launchpad.net/ubuntu/+source/vnc4/+bug/819473>

So I can't get back to that ssh session or to R.  I had done a bunch of
work
in R but the command history hasn't been written out.  If I kill R, I
assume
the command history is gone.  I wish I could somehow cause R to dump the
command history.  Is there any way to tell the running R process to write
the history somewhere?

Thanks in advance.

Mike

--
Michael B. Miller, Ph.D.
Minnesota Center for Twin and Family Research
Department of Psychology
University of Minnesota

--
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~**ripley/<http://www.stats.ox.ac.uk/~ripley/>
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272866 (PA)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595

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