从使您等待使用RCurl的页面下载文件

Question

I want to download a file from a page that makes me wait for the download. Following this answer an example of curl code would be:

curl -O -J -L   http://sourceforge.net/projects/bitcoin/files/Bitcoin/bitcoin-0.8.1/bitcoin-0.8.1-linux.tar.gz/download

which does what I want from the terminal. Now I want to do this using RCurl in R, but I have no idea where to start...

Answer 1

The following worked for me (using httr which is a modern wrapper for RCurl ):

library(httr)

url <- "http://sourceforge.net/projects/bitcoin/files/Bitcoin/bitcoin-0.8.3/bitcoin-0.8.3-linux.tar.gz/download"
dl <- GET(url, write_disk("bitcoin-0.8.3-linux.tar.gz"), verbose())

The verbose() is purely for interactive debugging and can be removed.