O: set

Ϊk: set variable [options]

:

  oӫOΨӳ]wӤH@ǪAѼơC
  P "toggle variable [on/off]" ۦP, Y [on/off] oٲ, Nu|
]w (ܬP]wۤϤ)C
  F}ܼƤ~, ٥iH]w@ǸTܼơC

  Ѽƪ, аѷ "help variables"C

O: variables 
