'''[Tcl]''' is a [scripting] language and stands for "'''T'''ool '''C'''ommand '''L'''anguage".
'''[Tk]''' is a [GUI] built on top of Tcl and is an abbreviation for "'''T'''ool'''k'''it".

For a quick-start introduction in scripting, see [Cameron Laird]'s column in SunWorld, 
called "Regular Expressions", which kicked off with this article:
   * http://www.sunworld.com/sunworldonline/swol-08-1998/swol-08-regex.html

Look for more info about Tcl/Tk at:
   * http://www.tcl.tk/
   * http://www.purl.org/net/tcl-faq/

[WiKit], the software for this [wiki], is also written in Tcl/Tk, as is [Wub], the webserver that hosts the wiki.
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