Eagle (Extensible Adaptable Generalized Logic Engine) is an implementation of the Tcl scripting language for the Common Language Runtime (CLR).
Try selecting one of the "Example Script Snippets" and then clicking the "Evaluate" button to evaluate it.
Most of the important commands from Tcl 8.4 are available.
This demonstration uses an isolated "safe" interpreter; therefore, some core language functionality (e.g. local files, network sockets, etc) is not available.