Bukkit

player(s)
    Can handle both offline and online players. Several inputs are separated by ",", eg. g:admin,w:world,vildaberper
    Syntax:
        g:<group>
            Will get all online players that is in the group <group>.
        w:<world>
            Will get all online players that is in the world <world>.
        <player>
            Will get the player <player>. It's case sensitive, but will work for both offline and online players.
        <string>-
            Will get all online players whos names start with <string>. Not case-sensitive.
        %<string>%
            Will get all online players whos names contains <string> Not case-sensitive.
        *
            Will get all online players.
duration
    Duration, eg. 1s
    Syntax:
        1s = 1 second
        1m = 1 minute
        1h = 1 hour
        1d = 1 day
        1w = 1 week
on/off
    Enabled/disabled, eg. true
    Not case-sensitive.
    Syntax:
        true, enabled, on, 1 = enabled
        false, disabled, off or of, 0 = disabled
world
    Gets the world by name, case sensitive.
key
    The desired key in the configuration. Tabs are replaced by ".", eg. blocks.physics.fire_spread
value
    The value to set the key to. Will be parsed, eg. if boolean on/off
id
    The id of the world you want to change the players property in. Default is 0.
gamemode
    Gamemode, not case-sensitive.
    Syntax:
        0 = survival
        1 = creative
health
    The players health. If 0, the player will be killed. 1 is half a heart.
hunger
    The players hunger. 1 is half a meat.
level
    The players level.
page
    The page of a list. If it is too high or too low, it will show the page closest to the page inserted.
type
    The mob type by name, not case-sensitive.
amount
    Amount.
target
    The target player (offline or online). Can only be one.
environment
    The environment of the world (NORMAL, NETHER, THE_END).
generator
    The generator of the world (FLATGRASS).