+* --setup configfile
+
+ In setup mode, ikiwiki reads the config file, which is really a perl
+ program that can call ikiwiki internal functions.
+
+ [[ikiwiki.setup]] is an example of such a config file.
+
+ The default action when --setup is specified is to automatically generate
+ wrappers for a wiki based on data in a config file, and rebuild the wiki.
+ If you only want to build any changed pages, you can use --refresh with
+ --setup.
+
+* --wrappers
+
+ If used with --setup --refresh, this makes it also update any configured
+ wrappers.
+
+* --aggregate
+
+ If the [[plugins/aggregate]] plugin is enabled, this makes ikiwiki poll
+ configured feeds and save new posts to the srcdir.
+
+ Note that to rebuild previously aggregated posts, use the --rebuild option
+ along with this one. --rebuild will also force feeds to be polled even if
+ they were polled recently.
+
+* --render file
+
+ Renders a single file, outputting the resulting html. Does not save state,
+ so this cannot be used for building whole wikis, but it is useful for
+ previewing an edited file at the command line. Generally used in conjunction
+ with --setup to load in a wiki's setup:
+
+ ikiwiki --setup ~/ikiwiki.setup --render foo.mdwn
+
+* --version
+
+ Print ikiwiki version number.
+
+# CONFIG OPTIONS
+
+These options configure the wiki. Note that [[plugins]] can add additional
+configuration options of their own.
+
+* --wikiname
+
+ The name of the wiki, default is "wiki".
+
+* --templatedir
+
+ Specify the directory that the page [[templates]] are stored in.
+ Default is `/usr/share/ikiwiki/templates`, or another location as
+ configured at build time.
+
+* --underlaydir
+
+ Specify the directory that is used to underlay the source directory.
+ Source files will be taken from here unless overridden by a file in the
+ source directory. Default is `/usr/share/ikiwiki/basewiki` or another
+ location as configured at build time.
+