Question

This is Tcl tutorial. In this tutorial you will learn Tcl language. The tutorial is suitable for beginners.

Tcl

Tcl is a string based scripting language. The source code is compiled into bytecode, which is later interpreted by the Tcl interpreter. It was created by John Osterhout in 1988. The language is commonly used for rapid prototyping, scripted applications, GUIs, and testing. The Tcl stands for tool command language, where the source code of a Tcl script consists of commands.

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You might also be interested in Tcl/Tk tutorial or Tkinter tutorial .