[R] Help with Download of a comma separated file in zip format

Ista Zahn istazahn at gmail.com
Tue Jul 15 20:16:23 CEST 2014

Not an R question, but see
https://addons.mozilla.org/en-US/firefox/addon/cliget/ for an easy way
to see what what is going on under the hood when you download using
firefox. For your example I get

wget --header='Host: www.nseindia.com' --header='User-Agent:
Mozilla/5.0 (X11; Linux x86_64; rv:30.0) Gecko/20100101 Firefox/30.0'
--header='Accept-Language: en-US,en;q=0.5' --header='Connection:
keep-alive' 'http://www.nseindia.com/content/historical/DERIVATIVES/2014/JUL/fo09JUL2014bhav.csv.zip'
-O 'fo09JUL2014bhav.csv.zip' -c

Now you just need to translate that to R. (Or not, sometimes its
easier to just shell out (using e.g., 'system()' ) and download with
wget or curl).


On Tue, Jul 15, 2014 at 11:24 AM, Electron Musketeer
<musketeere at gmail.com> wrote:
> Dear Experts
> I am new to this forum and to R and was trying the following to access a
> zip file from  the webpages of the NSE. Here is my code.
> temp <- tempfile()
> download.file("
> http://www.nseindia.com/content/historical/DERIVATIVES/2014/JUL/fo09JUL2014bhav.csv.zip
> ",temp)
> con <- unz(temp, "a1.dat")
> data <- matrix(scan(con),ncol=4,byrow=TRUE)
> unlink(temp)
> The result is:
> cannot open URL '
> http://www.nseindia.com/content/historical/DERIVATIVES/2014/JUL/fo09JUL2014bhav.csv.zip
> '
> In addition: Warning message:
> In download.file("
> http://www.nseindia.com/content/historical/DERIVATIVES/2014/JUL/fo09JUL2014bhav.csv.zip",
>  :
>   cannot open: HTTP status was '403 Forbidden'
> I tried accessing this file directly from the website and it is letting me
> access it. My question is why is it not letting me download from R? I have
> gone through some websites to see if this has been resolved but the older
> resolutions also do not work. Can someone help please?
> Thx
> Balaji
>         [[alternative HTML version deleted]]
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