R help - Feb 2006 - Using a console application from within R

I would like to open a console application from within R and then send input
to the newly opened console. I can use the following to open the application
...

setwd(path)
system(paste(path,"icl.exe",sep=""))

This allows me to type in what want, but I would like to do something like
this

setwd(path)
system(paste(path,"icl.exe",sep=""),input=c("icl
sim.tcl",
"exit"),wait=TRUE)

If I include input as part of the system function the application opens and
then closes immediately without processing the input.

Any assistance that you can offer would be greatly appreciated.

Jonathan Weeks
Doctoral Student
School of Education
University of Colorado, Boulder
jonathan.weeks at colorado.edu
303-517-9666

Don't know how you tell if its working but you need to write

   intern = TRUE

in order to get the output back.  For example, this works for me:

   system("findstr [a-m]", input = letters, intern = TRUE)

On 1/31/06, Jonathan Weeks <weeksjp at colorado.edu>
wrote:
> I would like to open a console application from within R and then send
input
> to the newly opened console. I can use the following to open the
application
> ...
>
> setwd(path)
> system(paste(path,"icl.exe",sep=""))
>
> This allows me to type in what want, but I would like to do something like
> this
>
> setwd(path)
> system(paste(path,"icl.exe",sep=""),input=c("icl
sim.tcl",
> "exit"),wait=TRUE)
>
> If I include input as part of the system function the application opens and
> then closes immediately without processing the input.
>
> Any assistance that you can offer would be greatly appreciated.
>
> Jonathan Weeks
> Doctoral Student
> School of Education
> University of Colorado, Boulder
> jonathan.weeks at colorado.edu
> 303-517-9666
>
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