> > maxima <aa.txt >bb.txt
> But is it possible to do such a thing under an OS like Windows ?
Yes, in a DOS shell, the following works:
sort < infile > outfile
so Windows does support Unix-style piping. I don't know how to convince
Maxima to do it, though.
Also, note that Maxima is designed to be interactive, so it often asks
the user questions, e.g.
limit(x^a,x,inf)
will ask "Is a positive, negative, or zero?". There are unfortunately
also many bugs which will cause Maxima to go into debug mode, and not
continue processing Maxima input (it might try to interpret it as
Lisp!).
I don't think there is any easy way around this.
-s