command: channels
arguments:
  list                   - lists available channels
  create x               - create a channel named x
* delete x               - deletes channel x
  show                   - shows channels you are listening to
  who x                  - lists people listening to x
  join x|all             - joins the channel x (or all channels)
  leave x|all            - stops listening to channel x (or all channels)
  send x y               - sends y to channel x
  topic x y              - changes channel x topic to y
* private x              - makes channel x private 
* public x               - makes channel x public
* save x                 - save channel x permanently (costs 15k copper)
* invite x to y          - invites player x to channel y
* banish x from y        - banishes player x from channel y

*) Only usable by the channel creator

To use a channel, eg 'mud', you must first tune into it.
  'channels join mud' or just 'on mud'
To broadcast something on the channel:
  'channels send mud foo' or just 'mud foo'

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cast < Commands > chfn