Create and read symbolic links in Windows

On 24.05.2013 04:03, Santosh wrote:

Dear R experts,

This time I am unable create symbolic links to files as I had done last
time. I could not replicate what I had successfully tried last time
(rerun
the same code without any modifications) .

I get the following error message..
[1] FALSE
Warning message:
In file.link(".file1", file2,  :
   cannot link './File1' to './file2', reason 'The specified network
name is
no longer available'

Same here,

and it worked for me, what was you actual call and permissions?

Please carefully read ?file.link and its section "Symbolic links on
Windows:"

Best,
Uwe Ligges

The "file.exists", however, results TRUE when I test for source and
target
folders and the source file.. I tried with mapping of drives , relative
folder path,and nothing worked.

The R version (on 64-bit Windows 7):

version

                _
platform       x86_64-w64-mingw32
arch           x86_64
os             mingw32
system         x86_64, mingw32
status
major          3
minor          0.0
year           2013
month          04
day            03
svn rev        62481
language       R
version.string R version 3.0.0 (2013-04-03)
nickname       Masked Marvel

Any suggestions are highly welcome!

Thanks,
Santosh

On Fri, May 3, 2013 at 11:30 AM, Santosh <santosh2005 at gmail.com> wrote:

Just got it right.... please ignore the previous posting...

It worked!
  Prof Ripley made my day!! :) THANK YOU!


On Fri, May 3, 2013 at 11:23 AM, Santosh <santosh2005 at gmail.com> wrote:

Thanks for your suggestion... I upgraded to R.3.0.0 in 64-bit Windows 7
environment..

This time when I use file.link..
I get the following error message: 'Cannot create a file when that file
already exists"
And I don't see the link.

The other function, file.copy, correctly copies to the target location.

Still confuse with the error msges...

Thanks,
Santosh


On Thu, May 2, 2013 at 11:42 PM, Prof Brian Ripley
<ripley at stats.ox.ac.uk

wrote:

On 03/05/2013 07:33, Santosh wrote:

Thanks for the suggestions. In windows (Windows 7, 64-bit), I
couldn't
get "file.symlink" to work, but "file.link" did return the result
to be
"TRUE" but at the target location, I did not see any link.

Not sure I am missing anything more.. Hope it's nothing to do with
administrator accounts and administrator rights... Is it something I
should check with my system administrator?

You may need to update your R: although the posting guide asked you to
do that before posting.  There was a relevant bug fix in 2.15.3.

Thanks,
Santosh


On Thu, May 2, 2013 at 12:22 PM, Prof Brian Ripley
<ripley at stats.ox.ac.uk <mailto:ripley at stats.ox.ac.uk>**> wrote:

     On 02/05/2013 19:50, Santosh wrote:

         Dear Rxperts..
         Got a couple of quick q's..
         I am using R in windows environment (both 32-bit and 64-bit)
         a) Is there a way to create symbolic links to some data
files?


     See ?file.symlink.  ??'symbolic link' should have got you there.

     Note that this is not very useful for files, but that is a
Windows
     and not an R restriction.

      > b) How do I read data from symbolic links?

     The same ways you read data from files.


         Thanks so much..
         Santosh



     --
     Brian D. Ripley, ripley at stats.ox.ac.uk <mailto:
ripley at stats.ox.ac.uk>
     Professor of Applied Statistics,

http://www.stats.ox.ac.uk/~__**ripley/<http://www.stats.ox.ac.uk/~__ripley/>



<http://www.stats.ox.ac.uk/~**ripley/<http://www.stats.ox.ac.uk/~ripley/>

     University of Oxford,             Tel: +44 1865 272861
     <tel:%2B44%201865%20272861> (self)
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--
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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