[[... explain ...]]

















Among the ways to have "the manual pages" online are
   * conventional Unix installations ... man ...
   * conventional Windows installation ...
   * PDF from ...
   * tcl.activestate.com page ...
   * neat [JCW]-authored scripted documents at [http://www.equi4.com/pub/dok/]
   * http://tmml.sf.net/coredocs.html
   * [TkMan]