DECLARE @logName as nvarchar(50)
DECLARE @databaseID as int
DECLARE db_cursor CURSOR FOR 
SELECT TOP 10 name,database_id -- only 10 but you can choose any number 
FROM sys.master_Files WHERE physical_name like '%.ldf'
--and physical_name not like 'C:\%'  -- specify your database paths 
and name not in ('mastlog','MSDBLog','templog','modellog','_LogFiles_log','MSDBLog') -- any database logs that you would like to exclude 
ORDER BY size DESC
OPEN db_cursor 
FETCH NEXT FROM db_cursor INTO @logName , @databaseID
WHILE @@FETCH_STATUS = 0 
BEGIN 
    DECLARE @databaseName as nvarchar(50)
 SET @databaseName =  DB_NAME(@databaseID)
  DECLARE @tsql nvarchar(300)
 SET @tsql='USE ['+@databaseName+'] ALTER DATABASE ['+@databaseName+'] set recovery simple DBCC SHRINKFILE ('+@logName+' , 1)'
 EXEC(@tsql)
    FETCH NEXT FROM db_cursor INTO @logName , @databaseID
END 
CLOSE db_cursor
DEALLOCATE db_cursor