[Rd] Redirect system2 stdout to a file on windows

[Henrik Bengtsson]

Works for me (Win 7 64bit) using R.exe:

> setwd(tempdir())
> getwd()
[1] "C:/Users/hb/AppData/Local/Temp/RtmpSqjCDt"
> res <- system2("whoami", stdout="out.txt", stderr="err.txt")
> res
[1] 0
> file.info(c("out.txt", "err.txt"))
        size isdir mode               mtime               ctime
out.txt   12 FALSE  666 2013-07-15 00:02:06 2013-07-15 00:02:02
err.txt    0 FALSE  666 2013-07-15 00:02:06 2013-07-15 00:02:02
                      atime exe
out.txt 2013-07-15 00:02:02  no
err.txt 2013-07-15 00:02:02  no

> sessionInfo()
R version 3.0.1 Patched (2013-07-10 r63264)
Platform: x86_64-w64-mingw32/x64 (64-bit)

locale:
[1] LC_COLLATE=English_United States.1252
[2] LC_CTYPE=English_United States.1252
[3] LC_MONETARY=English_United States.1252
[4] LC_NUMERIC=C
[5] LC_TIME=English_United States.1252

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base

loaded via a namespace (and not attached):
[1] tools_3.0.1

/Henrik

On Mon, Jul 15, 2013 at 12:01 AM, Gabor Grothendieck
<ggrothendieck at gmail.com> wrote:
> On Sun, Jul 14, 2013 at 5:20 PM, Jeroen Ooms <jeroen.ooms at stat.ucla.edu> wrote:
>> On Sun, Jul 14, 2013 at 10:24 PM, Gabor Grothendieck wrote:
>>> Try:
>>> out.txt <- normalizePath("./out.txt", mustWork = FALSE)
>>
>> Doesn't work either, neither on Win7 nor WinXP.
>>
>>> sessionInfo()
>> R version 3.0.1 (2013-05-16)
>> Platform: x86_64-w64-mingw32/x64 (64-bit)
>
> Not sure what happened but I tried it again and it did not work on my
> system either.
>
> If a workaround is ok then this works on my system:
>
> shell(paste("whoami", ">", "out.txt"))
>
>
>
> --
> Statistics & Software Consulting
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>
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