From simon.urbanek at r-project.org  Mon Apr 30 17:01:26 2007
From: simon.urbanek at r-project.org (Simon Urbanek)
Date: Mon, 30 Apr 2007 11:01:26 -0400
Subject: [Rd] Rscript again
In-Reply-To: <20070430140726.A04085ABF9@slim.kubism.ku.dk>
References: <20070430140726.A04085ABF9@slim.kubism.ku.dk>
Message-ID: <C936E941-3B16-41EE-B063-50C2FB2AB491@r-project.org>

On a similar note the example doesn't seem to work, either, due to  
escaping issues:

$ Rscript -e 'format(Sys.time(), "%a %b %d %X %Y")'
ARGUMENT '"%a' __ignored__

ARGUMENT '%b' __ignored__

ARGUMENT '%d' __ignored__

ARGUMENT '%X' __ignored__

ARGUMENT '%Y")' __ignored__

It works only if you remove all spaces from the expression:
$ Rscript -e 'format(Sys.time(),paste("%a","%b","%d","%X","%Y"))'
[1] "Mon Apr 30 10:45:47 AM 2007"

(Tested on i686 Debian etch Linux and Mac OS X 10.4.9 i686; bash,  
dash and csh show the same behavior; R 2.5.0 and R-devel 41383).


Although Rscript tries hard to pass the expression as one argument,  
it apparently doesn't prevent the shell from not taking it apart when  
calling Rexec from R.sh :/

Cheers,
Simon

On Apr 30, 2007, at 10:07 AM, S.J.Eglen at damtp.cam.ac.uk wrote:

> One of the examples in Rscript.Rd seems mis-formatted, in that the
> format statement is incomplete:
>
>      ## Not run:
>      Rscript -e 'date()' -e 'format(Sys.time(), "
>
> Both Rscript.Rd in R 2.5.0 and the version at:
> https://svn.r-project.org/R/trunk/src/library/utils/man/Rscript.Rd
> have
>
> Rscript -e 'date()' -e 'format(Sys.time(), "%a %b %d %X %Y")'
>
> Do the % need replacing with \% ?
>
> Stephen
>
>
>
>> sessionInfo()
> R version 2.5.0 (2007-04-23)
> i686-pc-linux-gnu
>
> locale:
> C
>
> attached base packages:
> [1] "stats"     "grDevices" "utils"     "datasets"  "graphics"   
> "methods"
> [7] "base"
>>
>
> ______________________________________________
> R-devel at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-devel
>
>



[Rd] Rscript again
Simon Urbanek