steps for taking bachup of oracle database

Can anyone please help me urgently to know what are the steps and commands used with BR*Tools with their SYANTAX in detail for BRBACKUP for taking backup of (datbase files,Online redolog files,control files) ,BRARCHIVE for taking backup of offline redolog filesand BRRESTORE for restoring of a datbase backups(Please give the syntax for taking backup of Oracle database in Tapedrives using BRBACK,BRARCHIVE,BRRESTORE.)

Thanking you for helping(in advance) .