R help - Dec 2006 - multiline system call

Hello,

I am trying to call sendmail from within R via system(). As sendmail reads 
from STDIN, I need to pass a multiline input as an argument.

E.g. (not working):

	system('sendmail -f xxx at swing.be -t yyy at swing.be\ntest\n.\n')

I tried a lot of ways to type the EOL characters, but cannot get them work the 
right way. This leads to several problems. For instance, R waits for me to 
enter <control-D> at the end of the sequence.

Thanks for any help.



-- 
Nicolas Mazziotta

The contents of this e-mail, including any attachments, are ...{{dropped}}

Look at the help page for ?system, especially the  'input=' arg.

Maybe this sort of strategy will fly:

> system("sh",intern=T,input=c("echo x","echo
y"))
[1] "x" "y"
>
In your case, maybe

system('sh' input=c('sendmail -f xxx at swing.be -t yyy at
swing.be','test','.')

or

system('sendmail -f xxx at swing.be -t yyy at swing.be',
input='test')

will do it.

On Fri, 22 Dec 2006, Nicolas Mazziotta wrote:
> Hello,
>
> I am trying to call sendmail from within R via system(). As sendmail reads
> from STDIN, I need to pass a multiline input as an argument.
>
> E.g. (not working):
>
> 	system('sendmail -f xxx at swing.be -t yyy at
swing.be\ntest\n.\n')
>
> I tried a lot of ways to type the EOL characters, but cannot get them work
the
> right way. This leads to several problems. For instance, R waits for me to
> enter <control-D> at the end of the sequence.
>
> Thanks for any help.
>
>
>
> -- 
> Nicolas Mazziotta
>
> The contents of this e-mail, including any attachments, are ...{{dropped}}
>
> ______________________________________________
> R-help at stat.math.ethz.ch mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide
http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>
Charles C. Berry                        (858) 534-2098
                                          Dept of Family/Preventive Medicine
E mailto:cberry at tajo.ucsd.edu	         UC San Diego
http://biostat.ucsd.edu/~cberry/         La Jolla, San Diego 92093-0717

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

The contents of this e-mail, including any attachments, are ...{{dropped}}

Its only available on Windows.

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
>
> The contents of this e-mail, including any attachments, are ...{{dropped}}
>
> ______________________________________________
> R-help at stat.math.ethz.ch mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide
http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>