3. Tcl and Tk Basics Tcl is built up from commands which act on data, and which accept a number of options which specify how each command is executed. Each command consists of the name of the command followed by one or more words separated by whitespace.

Before proceeding with this tutorial, it is advisable for you to understand the basic concepts of computer programming. This tutorial is self-contained and you will be able to learn various concepts of Tcl/Tk even if you are a beginner. You just need to h

Tcl Tutorial intended for beginners; Tcl/Tk Tutorial at Tutorials Point is very methodical, and includes an online interpreter so you can start using Tcl right away; TCLWISE is the first nine chapters of a book on the language, freely available online; Pr