[R] Download and Unzip a file

[himanshuy]

I tried using unzip but it gave the following error "Invalid zip name
argument" 

options(HTTPUserAgent="Firefox/8.0.1")
u =
"http://www.nseindia.com/content/historical/DERIVATIVES/2011/DEC/fo08DEC2011bhav.csv.zip"
o = getURLContent(u, verbose = TRUE, useragent = getOption("HTTPUserAgent")) 

after this I ran the unzip
unzip(o , files = NULL, list = FALSE, overwrite = TRUE, junkpaths = FALSE,
exdir = "D:\\", unzip = "internal", setTimes = FALSE)

but i got this error

Error in unzip(o, files = NULL, list = FALSE, overwrite = TRUE, junkpaths =
FALSE,  : 
  invalid zip name argument

Thanks
Himanshu Y

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