Version 9 of How to link to a page

HJG I know these variations:

Link to an external webpage: just write the url: http://www.google.com
Link to an external webpage without showing the link: write the url in square brackets: [L1 ],
this is nice for really long links like [L2 ] - Amazon: "Practical Programming in Tcl and Tk (4th Edition)"
Link within the wiki to a specific wiki page: put name of page in square brackets: How do Wiki Categories work
Link within the wiki to a specific wiki page, showing the square brackets: [Wikit Problems] - use triple square brackets
Link within the wiki to a wiki page, without getting a backlink: http://wiki.tcl.tk/2272 = [Category Application]
External link to a wiki page by number - http://wiki.tcl.tk/149
External link to a wiki page by name - http://wiki.tcl.tk/How+to+link+to+a+page
At one time, one could write this as http://wiki.tcl.tk/HowToLinkToAPage . It still sometimes works
One can link to a group of pages by specifying a word in a title, such as http://wiki.tcl.tk/link .
One can also link to a group of pages by specifying a word in a page, such as http://wiki.tcl.tk/external*

Click on the edit-link below to see the source of this wiki-page.