An alias is an alternate way of entering a command. Each alias is either shorter than the original command, or it is unique within the command's suite. (Because only the number of characters sufficient to uniquely identify a command need to be entered to execute the command, unique aliases require less typing.)
The bak suite is the only command suite with aliases. The following commands in the bak suite can also be entered as specified:
bak restoredb
Can be entered as bak dbrestore
bak restoredisk
Can be entered as bak dkrestore.
bak restoreft
Can be entered as bak ftrestore.
bak restoreftfamily
Can be entered as bak familyrestore.