How to add data from gnuplot to an existing file without overwiting the contents of said file

Question

I have some gnuplot code as follows:

gnuplot> h=1
gnuplot> a=2
gnuplot> set print \"additional numbers.txt\"
gnuplot> print h,a
gnuplot> set p         


        

Answer 1

Use the append flag:

set print "additional_numbers.txt" append