* zk links path/to/page
Prints all (internal) links presented on the page.
-* zk back path/to/page
+* zk backs path/to/page
Prints all (internal) backlinks to the page.
+* zk cats [prefix]
+ Print all categories/directories, optionally filtered by prefix.
* zk htmls path/to/dir
- Rendered the current directory to a bunch of HTMLS.
+ Render current directory to a bunch of HTMLs.
* zk dot | dot -Tpng >relations.png
Generates Graphviz'es dot graph with internal links relationships.