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An [Acronym] for __T__ool __C__ommand __L__anguage. It is a scripting language embedded in many applications, much like [Elisp] is used in [Emacs] and VisualBasic is in many MicrosoftWindows applications. (This does not mean these languages have anything in common; actually they're about as far apart from each other as imaginably possible.) Tcl is available on all [Unix]-like platforms, as well as on MicrosoftWindows. It is almost always combined with the [Tk] ToolKit. This makes it a good choice for portable [GUI] scripting. There is also a standalone interpreter. The language itself is limited and does not accomodate the needs of large, complex codebases. It was designed for easy extensibility and embeddability, intended to serve as a universal scripting interface to compiled libraries and applications containing the complexity and providing a simple [API]. The [Tk] ToolKit is a significant success for this model. In practice, more capable dynamic languages like [Perl], [Python] and [Ruby] that are designed to carry the complexity of a large codebase without the need for foreign libraries proved more popular at the one end, while fully scriptable applications never caught on at the other end. With [Tk]'s popularity long since dwindling, giving way to [GTK] and [Qt], so does the prominence of Tcl. Most people would consider it obsolete, though as with any technology (particularly in the OpenSource world), it has found a small following of supporters and enthusiasts who continue to evolve it. There is also still a moderate but significant amount of legacy TclTk code around. See also: * The Tcl community is working on the official [Tcl Tutorial | http://www.tcl.tk/man/tcl8.5/tutorial/tcltutorial.html] * [Tcl Developer Xchange | http://www.tcl.tk/] * [The Tcler's wiki | http://wiki.tcl.tk/], a very useful resource on [TCL]. * [The Tcl newsgroup | http://groups-beta.google.com/group/comp.lang.tcl?hl=en] * [Tclwise | http://www.invece.org/tclwise/], a partially online book about Tcl, may be a little challenging to newcomers but certainly worthwhile. * tclsh(1) * tclsh8.3(1) * wish(1) * wish8.3(1) ---- CategoryProgrammingLanguages, CategoryVeryHighLevelProgrammingLanguages
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