$ xdg_menu --help
xdg-menu - XDG menus for WindowMaker and other window managers
...
Usage:
xdg_menu [--format ] [--desktop ]
[--charset ] [--language ]
[--root-menu ] [--die-on-error]
[--fullmenu] [--help]
format - output format
possible formats: twm, WindowMaker, fvwm2, icewm, ion3,
blackbox, fluxbox, openbox,
xfce4, openbox3, openbox3-pipe, awesome
jwm, readable
default: WindowMaker
fullmenu - output a full menu and not only a submenu
desktop - desktop name for NotShowIn and OnlyShowIn
default: the same as format
charset - output charset
default: UTF-8
language - output language
default: ru_RU.UTF-8
root-menu - location of root menu file
default:
die-on-error - abort execution on any error,
default: try to continue
verbose - print debugging information
help - print this text
