Publisher: Wikibooks 2010
Tcl (Tool Command Language) is a dynamic programming/scripting language based on concepts of Lisp, C, and Unix shells. It can be used interactively, or by running scripts (programs) which can use a package system for structuring, hence allowing to do much with little code. This book also discusses the GUI toolkit Tk in considerable extent.
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by John K. Ousterhout - Addison-Wesley
The text takes a no-nonsense approach to the language, describing the elements of Tcl and Tk in programming-reference-style detail. If you are already familiar with a C-like language and want an introduction to Tcl and Tk, this is the book for you.
by Hal Abelson, Philip Greenspun, Lydia Sandon
We hope that a professional programmer or MIT student can breeze through this book in one evening. By the end of the evening, that person should have learned Tcl, learned a little something about the Web, and not have been bored.
by Clif Flynt, et al. - Tcl Developer Xchange
The tutorial is aimed at those who have some knowledge of programming, although you certainly don't have to be an expert. It is intended as a companion to the Tcl manual pages which provide a reference for all Tcl commands.
by Brent Welch, Ken Jones - Prentice Hall PTR
A practical guide to Tcl and Tk programming, useful both to the beginners and experts. The book includes examples, summarizing tables with Tcl commands and Tk widgets. The details of using Tcl and Tk on Windows, UNIX and Macintosh are described.