SQL: truncate all LOG files

SELECT
      'USE [' + d.name + N']' + CHAR(13) + CHAR(10)
    + 'DBCC SHRINKFILE (N''' + mf.name + N''' , 0, TRUNCATEONLY)'
    + CHAR(13) + CHAR(10) + CHAR(13) + CHAR(10)
FROM
         sys.master_files mf
    JOIN sys.databases d
        ON mf.database_id = d.database_id
WHERE d.database_id > 4 and mf.type_desc = 'LOG'
and d.recovery_model_desc = 'SIMPLE'