This tutorial describes how SAGA CMD can be used for automating work flows by scripting.
The tutorial is actually a presentation from the SAGA User Group Association meeting at the AGIT 2013.
The PDF, the scripts (batch, bash, python), and the data of the tutorial are available here: https://sourceforge.net/projects/saga-gis/files/SAGA%20-%20Documentation/Tutorials/Command_Line_Scripting/