declare @ssql nvarchar(4000)
set @ssql= '
    if ''?'' not in (''tempdb'',''master'',''model'',''msdb'')
        begin
            use [?]
            declare @tsql nvarchar(4000) set @tsql = ''''
            declare @recmodel nvarchar(10)
            declare @iLogFile int
            declare LogFiles cursor for
            select fileid from sysfiles where  status & 0x40 = 0x40
            open LogFiles
            fetch next from LogFiles into @iLogFile
            while @@fetch_status = 0
                begin
                    select @recmodel = (SELECT recovery_model_desc FROM sys.databases WHERE name = ''?'' )
                    if @recmodel = ''FULL''
                        begin
                            set @tsql = @tsql + ''use [?] ''
                            set @tsql = @tsql + ''ALTER DATABASE [?] SET RECOVERY SIMPLE ''
                            set @tsql = @tsql + ''DBCC SHRINKFILE(''+cast(@iLogFile as varchar(5))+'', 1) ''
                            set @tsql = @tsql + ''ALTER DATABASE [?] SET RECOVERY FULL ''
                        end
                    else
                        set @tsql = @tsql + ''DBCC SHRINKFILE(''+cast(@iLogFile as varchar(5))+'', 1) ''
                    fetch next from LogFiles into @iLogFile
            end
            --set @tsql = @tsql + '' BACKUP LOG [?] WITH TRUNCATE_ONLY '' + @tsql
            --print @tsql
            exec(@tsql)
            close LogFiles
            DEALLOCATE LogFiles
        end'
exec sp_msforeachdb @ssql