Tcl
ParadigmMulti-paradigm: event-driven, functional, imperative, object-oriented
Designed byJohn Ousterhout
DeveloperTcl Core Team1
First appeared1988
Stable release9.0.42 / 26 June 2026
Typing disciplineDynamic typing, everything is a string
Implementation languageC, Tcl
LicenseBSD-style3
Filename extensions.tcl, .tbc4
Websitewww.tcl-lang.org
Major implementations
ActiveTcl Androwish
Dialects
Jim, Eagle
Influenced by
AWK, Lisp
Influenced
PHP,5 PowerShell,6 Tea, TH17

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Footnotes

  1. “Tcl/Tk Core Development”. Tcl Developer Xchange. Retrieved 2016-11-01.

  2. “[TCLCORE] Tcl 9.0.4 RELEASED”. 26 June 2026. Retrieved 27 June 2026.

  3. “Tcl/Tk License Terms”. Tcl Developer Xchange. Retrieved 2016-11-02.

  4. “Tcl Dev Kit – Compiler”. ActiveState Docs. Archived from the original on 2016-10-20. Retrieved 2016-11-02.

  5. Lerdorf, Rasmus (2007-04-26). “PHP on Hormones – history of PHP presentation by Rasmus Lerdorf given at the MySQL Conference in Santa Clara, California”. The Conversations Network. Retrieved 2009-12-11.

  6. “PowerShell and WPF: WTF”. Windows PowerShell Blog. Microsoft. Archived from the original on December 25, 2008. Retrieved April 3, 2019.

  7. “TH1 Scripts”. Fossil.