Command DbGetAttributeAlias :

Get the attribute name for the given alias.
If alias not found in database, returns an empty string.

DbGetAttributeAlias Definition
Input Argument	Tango::DEV_STRING	The attribute alias name
Output Argument	Tango::DEV_STRING	The attribute name (device/attribute)
DisplayLevel	OPERATOR	..
Inherited	false	..
Abstract	false	..
Polling Period	Not polled	..
Command allowed for	All states	..