#!/bin/bash
s="02/01/2018 09:56:03 AM
LogName=Security
SourceName=Microsoft Windows security auditing.
EventCode=4624
EventType=0
Type=Information
ComputerName=COMPUTER1
TaskCategory=Logon
OpCode=Info
RecordNumber=1072237543
Keywords=Audit Success ..."
echo "$s" | sed -E "/^Type=[[:alnum:]_]+$/!d"
IyEvYmluL2Jhc2gKcz0iMDIvMDEvMjAxOCAwOTo1NjowMyBBTQpMb2dOYW1lPVNlY3VyaXR5ClNvdXJjZU5hbWU9TWljcm9zb2Z0IFdpbmRvd3Mgc2VjdXJpdHkgYXVkaXRpbmcuCkV2ZW50Q29kZT00NjI0CkV2ZW50VHlwZT0wClR5cGU9SW5mb3JtYXRpb24KQ29tcHV0ZXJOYW1lPUNPTVBVVEVSMQpUYXNrQ2F0ZWdvcnk9TG9nb24KT3BDb2RlPUluZm8KUmVjb3JkTnVtYmVyPTEwNzIyMzc1NDMKS2V5d29yZHM9QXVkaXQgU3VjY2VzcyAuLi4iCmVjaG8gIiRzIiB8IHNlZCAtRSAiL15UeXBlPVtbOmFsbnVtOl1fXSskLyFkIg==