Every rosetta script is run through a preprocessor that
allows you to have simple commands in your scripts.
These are similar to script_vars
but allow for more control.
RosettaDiagrams (external link): Provides a graphical interactive service to produce RosettaScripts XML files, with some ability to run the scripts as well.
I want to do x: Guide for making specific structural perturbations using RosettaScripts