Script to incrementally backup 6 partitions?

[n6ac]

I had thought that after registering, we would be using Applescript.
Apparently there is an internal scripting language?
Could you give an example script for backing up 6 volumes, upon command, to a second hard drive with 6 similar partitions?
case 1, incremental
case 2, complete replacement
and where does one store the script(s)?
Thank you.
n6ac