TCL

From Fmepedia

TCL (Tool Command Language) is a dynamic scripting language that is supported by FME. TCL scripts can be accessed through the TCLCaller transformer.

Installing TCL

FME includes a TCL interpreter, therefore TCL does not need to be separately installed to run a script in FME. However, if you wish, TCL can be downloaded from the main TCL website (http://www.tcl.tk/).

Learning TCL

The main website offers documentation and a user community.

If you have any book recommendations, or pointers to available resources. Feel free to add them.