bb_list

This command lists bb messages in a specified range. If no range is
given, it defaults to "last X", where X is the value of the player's
bblist field if one is defined, or else 20. "bb" by itself is a shortcut for
"bb list".

Syntax:
 bb list = last 20 (list the last 20 messages on main board)
 bb                (ditto)
 bb list = #foo : last 20 (list the last 20 message on channel #foo)
 bb #foo           (ditto)