Where Online Learning is simpler!

The output of your command "$ catman --help" is:

Usage: catman [OPTION...] [SECTION...]

  -C, --config-file=FILE     use this user configuration file
  -d, --debug                emit debugging messages
  -M, --manpath=PATH         set search path for manual pages to PATH
  -?, --help                 give this help list
      --usage                give a short usage message
  -V, --version              print program version

Mandatory or optional arguments to long options are also mandatory or optional
for any corresponding short options.

Report bugs to cjwatson@debian.org.