[R] Moving Rterm.exe to another location

[Uwe Ligges]

Dennis Fisher wrote:
> Colleagues,
> 
> I have encountered the following situation in R (2.9.0) with Windows XP.
> 
> I have an application that calls Rterm.exe.  In certain situations, the 
> application terminates but fails to close R.  Then, the next time that 
> the application runs, there are replicated copies of R running - this 
> slows the system.  One solution would be to kill any open versions of 
> Rterm.exe each time the application terminates.  But, that would affect 
> other legitimate copies of Rterm.
> 
> The solution to that problem is simple.  Instead of running Rterm.exe, I 
> copy Rterm.exe to Rterm-nnnnn.exe, execute that version, then when the 
> job is complete, I can specifically terminate that version using 
> Window's taskkill command.
> 
> Unfortunately, I just encountered a new problem.  If the R folder has 
> restricted privileges, it appears that I cannot copy Rterm.exe to the 
> same folder.  So, I attempted a work-around, i.e., move the copy to 
> another folder (e.g., Desktop).  However, this does not work - when the 
> copy is in another location, it opens, then closes immediately.
> 
> So, my question is: is there some means to call Rterm.exe (I assume that 
> the same would apply to R.exe) from a folder other the bin?

It does not need to be called bin, but must be in the same level of the 
directory structure within the main R folder.

I guess you could better record the PID of your R session (Sys.getpid(), 
say in some file) and delete that file on graceful exit of R. Otherwise 
you can kill the process with the old PID later on.

Uwe Ligges






> Dennis
> 
> 
> Dennis Fisher MD
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