COMMAND: lock
ARGUMENTS: <item>

The "lock" command locks items in your inventory.  Locked items are not
affected by the "all" keyword--only by the "ALL" keyword.  This would prevent
you from losing locked items by using "sell all", "drop all", etc.  See "help
syntax" for more information on "all" vs "ALL".

The "unlock" command is used to unlock items.

EXAMPLES:

lock all container
lock key 3