Produce a catpath as opposed to a manpath.
Once the manpath is determined,
each path element is converted to its relative catpath.
Produce a manpath consisting of all paths named as global within the
man-db configuration file.
If this system has access to other operating systems manual hierarchies,
this option can be used to include them in the output of
manpath. To include NewOSs manual page hierarchies use the option
system specified can be a combination of comma delimited operating system names.
To include the native operating systems manual page hierarchies,
the system name
man must be included in the argument string.
This option will override the
$SYSTEM environment variable.
-C file, --config-file=file
Use this user configuration file rather than the default of
$MANPATH is set,
manpath displays its value rather than determining it on the fly.
$MANPATH is prefixed by a colon, then the value of the variable is appended
to the list determined from the content of the configuration files.
If the colon comes at the end of the value in the variable, then the
determined list is appended to the content of the variable.
If the value of the variable contains a double colon
(::), then the determined list is inserted in the middle of the value, between
the two colons.
$SYSTEM is set, it will have the same effect as if it had been specified as the
argument to the