multiline system call

Its only available on Windows.
Right, but on linux this works
system("echo x\necho y",intern=T)
[1] "x" "y"
system("echo x ; echo y",intern=T)
[1] "x" "y"

so you don't really need input=...

But rereading Nicolas original post, it looks like the problem is 
terminating the input with a ctrl-D.

Perhaps a workaround is to pipe the input into sendmail (I recall sendmail 
accepts input from sdtin) from 'echo'

Note that the single quotes are needed to protect the '\n's until echo is 
ready to act:
system("echo 'a \n b \n c' | wc ",intern=T)
[1] "      3       3      10"

I have exim - not sendmail, but this sends a msg from/to me on my linux 
box:

system("echo 'To:cberry\nthis is a test' | /usr/sbin/exim -f cberry at tajo.ucsd.edu -t "

Maybe this will work for Nicolas.
On 12/22/06, Nicolas Mazziotta <nicolas.mazziotta at swing.be> wrote:
Dear Sir,

Le vendredi 22 d?cembre 2006 20:05, vous avez ?crit :
system("sh",intern=T,input=c("echo x","echo y"))
Thanks for the advice, but I do not find doc about the input arg for the
system function. Besides,

$> system("sh",intern=T,input=c("echo x","echo y"))
Erreur dans system("sh", intern = T, input = c("echo x", "echo y")) :
       unused argument(s) (input = c("echo x", "echo y"))

Is R version 2.4.0 (2006-10-03) too old?

Best regards,

--
Nicolas Mazziotta

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multiline system call

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