catman is used to create an up to date set of pre-formatted manual pages known as
Cat pages are generally much faster to display than the original
manual pages, but require extra storage space.
The decision to support cat pages is that of the local administrator, who
must provide suitable directories to contain them.
The options available to
catman are the manual page hierarchies and sections to pre-format.
The default hierarchies are those specified as system hierarchies in the
man-db configuration file, and the default sections are either the
colon-delimited contents of the environment variable
$MANSECT or the standard set compiled into
$MANSECT is undefined.
catman with a set of whitespace-delimited section names will override both of
catman makes use of the
index database cache associated with each hierarchy to determine which files
need to be formatted.