  $ monmaptool
  monmaptool: must specify monmap filename
   usage: [--print] [--create [--clobber][--fsid uuid]]
          [--generate] [--set-initial-members]
          [--add name 1.2.3.4:567] [--rm name]
          [--feature-list [plain|parseable]]
          [--feature-set <value> [--optional|--persistent]]
          [--feature-unset <value> [--optional|--persistent]] <mapfilename>
  [1]
