sell <object> for <amount>sell <object> <creature> for <amount>sell <object> to <creature> for <amount>sell <creature> <object> for <amount>sell to <creature> <object> for <amount>buy/view <object>buy/view <object> <creature>buy/view <object> from <creature>buy/view <creature> <object>buy/view from <creature> <object>Buy and sell work much like give and accept, except they allow you to exchange items for a specified price (see ‘help soul points’). The offer to sell will remain open for 30 seconds. You may also use the view command to see the stats of the item being sold.
Note that ‘@’ is an alias for ‘to’ (and ‘from’ when buying an object).
See also: give accept