[REBOL] Command Line Args

[bpaddock]

Can some one please send me a example of how to deal with
command lind arguments please?

I want to do some thing like this from the command line:

rebol -swq trim.r file.in file.out

Manual says I should see "file.in and file.out" at
system/script/args but I don't.

What am I doing wrong?