A '''library''' is a collection of functions that can be used by a [program] or
another library.


** See Also **

   [http://www.tcl.tk/man/tcl/TclCmd/library.htm%|%the official standard library of built-in Tcl procedures]:   

   [A Tcl repository]:   a guide to libraries, packages, modules, extensions, etc., for Tcl



** Description **

"Library" means different things here, all different from the popular concept "a building with many books inside":
   * Tcl and Tk both are delivered as shared libraries.
   * In a typical distribution, there is a lib dir, which contains directories like tcl8.3 and tk8.3, which contain Tcl scripts and other packages.
   * A popular Tcl-only extension is Tcllib, the "Tcl library", and its young brother Tklib
Just to make things a little less unclear... [RS]

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