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Tcl ○˒｜Definition｜1st｜20251119205401-00-⌔
Tcl (programming language) - Wikipedia
Tcl (programming language)
Tcl (pronounced as an acronym,/ˈtɪk(ə)l/, like tickle, or as an initialism,/ˌtiːˌsiːˈɛl/, like T-C-L;1 originally Tool Command Language) is a high-level, general-purpose, interpreted, dynamic programming language. It was designed with the goal of being very simple but powerful.2 Tcl casts everything into the mold of a command, even programming constructs like variable assignment and procedure definition.3 Tcl supports multiple programming paradigms, including object-oriented, imperative, functional, and procedural styles.
It is commonly embedded into C applications4 for rapid prototyping, scripted applications, GUIs, and testing.5 Tcl interpreters are available for many operating systems, allowing Tcl code to run on a wide variety of systems. Because Tcl is a very compact language, it is used on embedded systems platforms, both in its full form and in several other small-footprint versions.6
The popular combination of Tcl with the Tk extension is referred to as Tcl/Tk (pronounced “tickle teak” or “tickle TK”) and enables building a graphical user interface (GUI) natively in Tcl. Tcl/Tk is included in the standard Python installation in the form of Tkinter.
Printed 2026-06-28.
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Link to original Footnotes
Kenny, Kevin (4 July 2005). “Re: TCL certification”. Newsgroup: comp.lang.tcl. ↩
“Language”. Tcl Developer Xchange. Retrieved 2016-11-02. ↩
Tcl Fundamentals, Chapter 1 in Practical Programming in Tcl and Tk, ISBN 0-13-038560-3 ↩
From the inside flap of Tcl and the Tk Toolkit, ISBN 0-201-63337-X ↩
“Uses for Tcl/Tk”. Tcl Developer Xchange. Retrieved 2016-11-02. ↩
“Cisco IOS Scripting with TCL Configuration Guide”. Cisco Support. Retrieved 2016-11-02. ↩
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