... dnsq: query a DNS server dnstrace: search for all DNS servers relevant to a name ...Each line is a link such as
<a name="dnstrace" href="host/cr.yp.to/djbdns/debugging.html#dnstrace">...</a>...<br>in the general form
<a name="cmdname" href="url">cmdname</a>: description<br>although future extensions may add more information after the href.
There are other indices similar to /doc/commands.html: /doc/packages.html is an index of packages; /doc/fileformats.html is an index of file formats; /doc/cfunctions.html is an index of C functions.
You can point your browser to /doc/commands.html#dnstrace to look up the dnstrace command by name.
An experimental replacement for man -k foo | less is the slashdoc script, which uses the w3m browser. slashdoc foo starts w3m with a list of index links containing foo, in a sensible order. A big advantage over man -k is that you can very quickly follow the links.
We need browser-compatible documentation anyway: users want to read documentation on the web before they download a package. The only extra effort required for /doc is the effort of packaging the existing documentation with a few index links.