localectl — Control the system locale and keyboard layout settings
localectl  [OPTIONS...] {COMMAND}
localectl may be used to query and change the system locale and keyboard layout settings.
The system locale controls the language settings of system services and of the UI before the user logs in, such as the display manager, as well as the default for users after login.
The keyboard settings control the keyboard layout used on the text console and of the graphical UI before the user logs in, such as the display manager, as well as the default for users after login.
Use systemd-firstboot(1) to initialize the system locale for mounted (but not booted) system images.
The following options are understood:
--no-ask-password¶Do not query the user for authentication for privileged operations.
--no-convert¶If set-keymap or set-x11-keymap is invoked and this option is passed, then the keymap will not be converted from the console to X11, or X11 to console, respectively.
-H, --host=¶Execute the operation remotely. Specify a hostname, or a
      username and hostname separated by "@", to
      connect to. The hostname may optionally be suffixed by a
      container name, separated by ":", which
      connects directly to a specific container on the specified
      host. This will use SSH to talk to the remote machine manager
      instance. Container names may be enumerated with
      machinectl -H
      HOST.
-h, --help¶--version¶--no-pager¶Do not pipe output into a pager.
The following commands are understood:
Show current settings of the system locale and keyboard mapping.
Set the system locale. This takes one or more assignments such as "LANG=de_DE.utf8", "LC_MESSAGES=en_GB.utf8", and so on. See locale(7) for details on the available settings and their meanings. Use list-locales for a list of available locales (see below).
List available locales useful for configuration with set-locale.
Set the system keyboard mapping for the
        console and X11. This takes a mapping name (such as "de" or
        "us"), and possibly a second one to define a toggle keyboard
        mapping. Unless --no-convert is passed, the
        selected setting is also applied as the default system
        keyboard mapping of X11, after converting it to the closest
        matching X11 keyboard mapping. Use
        list-keymaps for a list of available
        keyboard mappings (see below).
List available keyboard mappings for the console, useful for configuration with set-keymap.
Set the system default keyboard mapping for
        X11 and the virtual console. This takes a keyboard mapping
        name (such as "de" or "us"),
        and possibly a model, variant, and options, see
        kbd(4)
        for details. Unless --no-convert is passed,
        the selected setting is also applied as the system console
        keyboard mapping, after converting it to the closest matching
        console keyboard mapping.
List available X11 keymap models, layouts, variants and options, useful for configuration with set-keymap. The command list-x11-keymap-variants optionally takes a layout parameter to limit the output to the variants suitable for the specific layout.