apropos(1) on Linux
The text ebd0cab6169c, as Debian 2.2 (Potato) shipped it.
search the manual page names and descriptions
Flags it lists
-
--debug -
--exact -
--help -
--manpath -
--regex -
--version -
--wildcard -
-M -
-V -
-d -
-e -
-h -
-r -
-w