from
The Free On-line Dictionary of Computing (8 July 2008)
Tool Command Language
Tcl
<language> /tik*l/ (Tcl) An interpreted string processing
language for issuing commands to {interactive} programs,
developed by {John Ousterhout} at {UCB}. Each {application
program} can extend tcl with its own set of commands.
Tcl is like a text-oriented {Lisp}, but lets you write
algebraic expressions for simplicity and to avoid scaring
people away. Though originally designed to be a "scripting
language" rather than for serious programming, Tcl has been
used successfully for programs with hundreds of thousands of
lines.
It has a peculiar but simple {syntax}. It may be used as an
embedded {interpreter} in application programs. It has
{exceptions} and {packages} (called libraries), {name-spaces}
for {procedures} and {variables}, and provide/require. It
supports {dynamic loading} of {object code}. It is {eight-bit
clean}. It has only three variable types: strings, lists and
{associative arrays} but no {structures}.
Tcl and its associated {GUI} {toolkit}, {Tk} run on all
flavors of {Unix}, {Microsoft Windows}, {Macintosh} and {VMS}.
Tcl runs on the {Amiga} and many other {platforms}.
Latest version: 8.0.3, as of 1998-09-25.
See also {expect} (control interactive programs and pattern
match on their output), {Cygnus Tcl Tools}, {[incr Tcl]} (adds
classes and inheritence to Tcl), {Scriptics} (John
Ousterhout's company that is the home of Tcl development and
the TclPro tool suite), {Tcl Consortium} (a non-profit agency
dedicated to promoting Tcl), {tclhttpd} (an embeddable
Tcl-based web server), {tclx} (adds many commands to Tcl),
{tcl-debug}.
comp.lang.tcl FAQ at MIT
(ftp://rtfm.mit.edu/pub/usenet-by-group/comp.answers/tcl-faq/).
or at purl.org (http://purl.org/NET/Tcl-FAQ/).
Scriptics downloads
(http://scriptics.com/software/download.html).
Kanji (ftp://srawgw.sra.co.jp/pub/lang/tcl/jp/).
Usenet newsgroups: news:comp.lang.tcl.announce,
news:comp.lang.tcl.
["Tcl: An Embeddable Command Language", J. Ousterhout, Proc
1990 Winter USENIX Conf].
(1998-11-27)