我正在解析一些日志文件并找出错误。每一行看起来像这样：
CreateOrder_hostname1.domain.com_201509291530_tee.log:2015-09-29 15:42:06,715:ERROR :Thread-26_CreateOrder: [1443555726715] Error description [system]: Method1
ScheduleOrder_hostname2.domain.com_201509291530_tee.log:2015-09-29 15:42:06,715:ERROR :Thread-26_ScheduleOrder: [1443555726715] Error description 2 [system]: Method2
ScheduleOrder_hostname2.domain.com_201509291530_tee.log:2015-09-29 15:42:06,715:ERROR :Thread-26_ScheduleOrder: [1443555726715] Error description 3 [system]: Method3
ShipOrder_hostname3.domain.com_201509291530_tee.log:2015-09-29 15:42:06,715:ERROR :Thread-26_ShipOrder: [1443555726715] Error description 4 [system]: Method4
我怎样才能使用这条线并让它读到这样的东西？
CreateOrder: 2015-09-29 15:42:06: Error description
ScheduleOrder: 2015-09-29 15:42:06: Error description 2
ScheduleOrder: 2015-09-29 15:42:06: Error description 3
ShipOrder: 2015-09-29 15:42:06: Error description 4