I want to filter csv file on the basis of the lines which starts with date copy them to new .csv file
Date_received,date_occurred,time_to_close,event_handle,CLASS,status,severity,mc_host,tec_class,help_key,msg,mc_object_class,mc_object,mc_parameter,mc_parameter_value,mc_owner,mc_object_owner,mc_origin,mc_origin_key,mc_origin_sev,mc_event_category,ap_id,bao_action,bao_notify,bao_reply_received,delay_action,check_delay,da_instance,da_oncall,da_oncall_group,da_instance_oncall,da_supported,ecc_supported,environment,support_level,disposition,host_os,os_detail,repeat_count,incident_id,renotify,send_email,to_email,send_page,to_page,send_incident,to_incident,send2bao,to_bao,send2console,send2log,to_logfile,thresh_action,thresh_count,thresh_seconds,el_event_id,el_event_type,mc_client_address,adapter_host,snmp_enterprise,snmp_vals,mc_operations
BMC Impact Query 7.3.02.19 (Build 1684421 - 27-Oct-2010),,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
Copyright 1998-2010 BMC Software, Inc. as an unpublished work. All rights reserved.,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
3/9/2013 23:00,3/10/2013 23:00,0,50331328,DATABASE_EVENT,CLOSED,WARNING,THD729SQ,DataBaseEmail,,"DataBaseEmail sqlrebuildix Rebuild index failed on ProfileAbstractionInternal in instance D1XX01, Rebuild Index Skipped. THD729SQ.",,,,,,,,,,,,,,NO,-1,90,,NO,-,none,NO,NO,DEVELOPMENT,0,INSTALLATION,W2K3-X64ENTERPRISE,RTM+SP2,0,,0,NO,,NO,,NO,,NO,,NO,NO,,[],[],[],,,10.40.239.30,THD729SQ,,,[]
BMC Impact Query 7.3.02.19 (Build 1684421 - 27-Oct-2010),,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
Copyright 1998-2010 BMC Software, Inc. as an unpublished work. All rights reserved.,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
3/9/2013 23:00,3/11/2013 23:00,0,50331381,DATABASE_EVENT,CLOSED,WARNING,THQ001SQ,DbmsInitializationFailure,,DbmsInitializationFailure SqlNight Could not initialize SQL Server instance q1rt06. THQ001SQ autosysRun,,,,,,,,,,,,,,NO,0,0,,NO,-,none,YES,YES,QA,2,CERTIFIED,W2K3-ENTERPRISE,RTM+SP1,0,,0,NO,DA_NTGRP_Email_Group,NO,DA_ONCALL_MSSQLServer_Page_Group,NO,,NO,,NO,NO,,[],[],[],,,10.41.247.4,THQ001SQ,,,[]
BMC Impact Query 7.3.02.19 (Build 1684421 - 27-Oct-2010),,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
Copyright 1998-2010 BMC Software, Inc. as an unpublished work. All rights reserved.,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
3/9/2013 23:01,3/9/2013 23:01,1,50331390,