How to clean Up database log files under SQL Server R2

Use [master]  GO  ALTER DATABASE [DB name] set RECOVERY simple with no_wait  GO  ALTER DATABASE [DB name] set RECOVERY simple  go< C7/>use [database name]  GO  DBCC shrinkfile (N'[database log file name]'0, TRUNCATEONLY)  go use  [master]  go  ALTER Database [database name] SET RECOVERY full with no_wait  GO  ALTER Database [db name] SET RECOVERY  full Go    -- Query the log file name of the specified database use  [database name]   go  SELECT name from Sys.database_files WHERE Type_desc ='LOG'  

How to clean Up database log files under SQL Server R2