[R] Listing the contents of an FTP directory via R?

[Jonathan Greenberg]

Steven:

Thanks -- I seem to be running into the problem with the link I sent along:

> getURL("ftp://e4ftl01.cr.usgs.gov/MOTA/MCD15A3.005/",verbose=TRUE,dirlistonly = TRUE)
Error in function (type, msg, asError = TRUE)  : RETR response: 550

I'm wondering if it might be a passive ftp issue, but:
> getURL("ftp://e4ftl01.cr.usgs.gov/MOTA/MCD15A3.005/",verbose=TRUE,ftp.use.epsv=TRUE, dirlistonly = TRUE)
Error in function (type, msg, asError = TRUE)  :
  FTP response reading failed

Does not seem to work...  Thoughts?

--j

On Mon, Apr 9, 2012 at 1:32 PM, steven mosher <moshersteven at gmail.com> wrote:
> A couple of ways.
>
> using Rcurl   you can use the  curlOption of dirlistonly.
>
> otherwise you can read the page and parse.  I've got some code around here
> to do that.
>
> Steve
>
> On Mon, Apr 9, 2012 at 11:27 AM, Jonathan Greenberg <jgrn at illinois.edu>
> wrote:
>>
>> R-helpers:
>>
>> I'd like to be able to store all the file information from an ftp site
>> (e.g. file and foldernames) through an R command.  Any ideas how to do
>> this?  Here's an example site to use:
>>
>> ftp://e4ftl01.cr.usgs.gov/MOTA/MCD15A3.005
>>
>> --j
>>
>> --
>> Jonathan A. Greenberg, PhD
>> Assistant Professor
>> Department of Geography and Geographic Information Science
>> University of Illinois at Urbana-Champaign
>> 607 South Mathews Avenue, MC 150
>> Urbana, IL 61801
>> Phone: 415-763-5476
>> AIM: jgrn307, MSN: jgrn307 at hotmail.com, Gchat: jgrn307, Skype: jgrn3007
>> http://www.geog.illinois.edu/people/JonathanGreenberg.html
>>
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>
>



-- 
Jonathan A. Greenberg, PhD
Assistant Professor
Department of Geography and Geographic Information Science
University of Illinois at Urbana-Champaign
607 South Mathews Avenue, MC 150
Urbana, IL 61801
Phone: 415-763-5476
AIM: jgrn307, MSN: jgrn307 at hotmail.com, Gchat: jgrn307, Skype: jgrn3007
http://www.geog.illinois.edu/people/JonathanGreenberg.html