The Best way to Shrink Transaction Log file

http://www.mssqltips.com/tip.asp?tip=1225
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1): Backup the Log File to Disk.
2): Run the Following:

sp_helpdb 'TempDB'
exec sp_helpfile
DBCC OPENTRAN
DBCC SQLPERF(logspace)
DBCC LOGINFO
exec master..xp_fixeddrives

USE Warehouse
GO
DBCC SHRINKFILE(Warehouse_log,EMPTYFILE)
BACKUP LOG Warehouse WITH TRUNCATE_ONLY
DBCC SHRINKFILE(Warehouse_log, EMPTYFILE)