[R] Create and read symbolic links in Windows
Uwe Ligges
ligges at statistik.tu-dortmund.de
Sat May 25 19:58:43 CEST 2013
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)
>>>>> 1 South Parks Road, +44 1865 272866 <tel:%2B44%201865%20272866>
>>>>> (PA)
>>>>>
>>>>> Oxford OX1 3TG, UK Fax: +44 1865 272595
>>>>> <tel:%2B44%201865%20272595>
>>>>>
>>>>> ______________________________**__________________
>>>>> R-help at r-project.org <mailto:R-help at r-project.org> mailing list
>>>>> https://stat.ethz.ch/mailman/_**_listinfo/r-help<https://stat.ethz.ch/mailman/__listinfo/r-help>
>>>>>
>>>>> <https://stat.ethz.ch/mailman/**listinfo/r-help<https://stat.ethz.ch/mailman/listinfo/r-help>
>>>>>>
>>>>> PLEASE do read the posting guide
>>>>> http://www.R-project.org/__**posting-guide.html<http://www.R-project.org/__posting-guide.html>
>>>>>
>>>>> <http://www.R-project.org/**posting-guide.html<http://www.R-project.org/posting-guide.html>
>>>>>>
>>>>> and provide commented, minimal, self-contained, reproducible code.
>>>>>
>>>>>
>>>>>
>>>>
>>>> --
>>>> 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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