[R] Basic doubts on the use of several script files in R batch mode

[mcnda839 at mncn.csic.es]

I already searched for information regarding the batch file operations  
within R. But I could not locate the information I need.

Basically I have a doubt regarding the procedures on the batch use of  
several script files (*.R).
How can I do this?
How can I define the order of files?

My intention is to programme openings, math operations and savings of  
*.Rdata sessions, but in a sequential manner.

Thanks in advance,

Diogo André Alagador
Biochange Lab, Madrid, Spain