[GRASSLIST:1512] system() & R

[Cannata, Massimiliano]

Hello users,
i write an R script that execute temperature interpolation 
inside a GRASS environmental.
Now all i want to do is write a GRASS command that send 
some variable and command to my system.....

After having started my GRASS section i have to run my 
command, set my variable and then trogth the C system() 
command start my R section, execute my script.R and quit 
R.

My problem is that after starting R section my system do 
not go on..... is waiting for command input.....
Have you the solution?

Follows my code:

//variable setted
timestamp = input->answer;
	dtm=elevation->answer;

//start R
	system("R;");

//delete all variable	
	system("rm(list = ls());");

//set the R variable Ttime & dem	
	command = strcat("Ttime<-'",(const char*)timestamp);
	command = strcat(command,"' > /home/tmp.txt");
	system(command);
	printf(command);
	
	command = strcat("dem<-'",(const char*)dtm);
	command = strcat(command,"' > /home/tmp.txt");
	system(command);
	printf(command);
	
//run my R script
	system("source(/home/mcannata/Rscript/temper.R)>tmp.txt");
	printf("eleboration running...");
	
//write my Raster to GRASS
	command = "rast.put(G,lname=";
	strcat(command,(const char*)timestamp);
	strcat(command,",Temperatura$t)");
	printf(command);
	
//delete redirected output
	system("rm /home/tmp.txt");

//stop R session
         system("q()");
	
--------------------------------------
Eng. Massimiliano Cannata
Phd student
www.supsi.ch