[R] How to save independent R sessions in BATCH mode?

[mcnda839 at mncn.csic.es]

Hi Rers,

I would like to use the BATCH mode to R automatically:
open 2 R sessions (ex. data1.Rdata, data2.Rdata),
produce some calculations (
),
save 2 sessions (sol1.Rdata, sol2.Rdata),

My problem when using R CMD BATCH master.R is that when I use master.R  
as a master file, with:
   source(“file1.R”)
   source(“file2.R”)

with “file1.R” script:
   load(“data1.Rdata”)
   

   save.image(“sol1.Rdata”)

and “file2.R” script with
   load(“data2.Rdata”)
   

   save.image(“sol2.Rdata”)

sol.2.Rdata comes with information of sol1.Rdata, appearing that the  
1st R session did not shutdown.
Any suggestions to save sol1.Rdata and sol2.Rdata, independently from  
each other?

Grateful in advance,
All the best,

Diogo Alagador