λ msde --help
usage: msde [options...]

subcommands
    general                general utilities

options:
    -h, --help            shows this message and exits
        --version         sets the maplestory version

λ msde general --help
usage: msde general [options..]

options:
    -h, --help           shows this message and exits
        --unpack         unpacks maplestory

λ msde general --lol
usage: msde general [options..]
msde: error: unrecognised option '--lol'

λ msde general --unpack
G:/MapleStory2\Data\lua.m2d
G:/MapleStory2\Data\Xml.m2d