How to reformat MQ error message

The content of the MQ error log is as following:

12/08/2018 08:21:42 AM - Process(16535.4) User(root) Program(amqzmur0)
                    Host(love) Installation(Installation1)
                    VRMF(8.0.0.9) QMgr(QM2)
                 
AMQ6287: WebSphere MQ V8.0.0.9 (p800-009-180321.1).

EXPLANATION:
WebSphere MQ system information:
Host Info         :- Linux 2.6.32-696.13.2.el6.x86_64 (MQ Linux (x86-64
platform) 64-bit)
Installation      :- /opt/mqm (Installation1)
Version           :- 8.0.0.9 (p800-009-180321.1)
ACTION:
None.
-------------------------------------------------------------------------------
12/08/2018 08:21:41 AM - Process(30069.1) User(root) Program(runmqchl)
                    Host(love) Installation(Installation1)
                    VRMF(8.0.0.9) QMgr(QM2)
                 
AMQ9213: A communications error for TCP/IP occurred.

EXPLANATION:
An unexpected error occurred in communications.
ACTION:
The return code from the TCP/IP (connect) call was 113 (X'71'). Record these
values and tell the systems administrator.
----- amqccita.c : 1278 -------------------------------------------------------
12/08/2018 08:21:41 AM - Process(30069.1) User(root) Program(runmqchl)
                    Host(love) Installation(Installation1)
                    VRMF(8.0.0.9) QMgr(QM2)
                 
AMQ9999: Channel 'QM2.V9QM2' to host '192.168.136.123(1415)' ended abnormally.

EXPLANATION:
The channel program running under process ID 30069 for channel 'QM2.V9QM2'
ended abnormally. The host name is '192.168.136.123(1415)'; in some cases the
host name cannot be determined and so is shown as '????'.
ACTION:
Look at previous error messages for the channel program in the error logs to
determine the cause of the failure. Note that this message can be excluded
AMQERR01.LOG


However I would like to reformat the error log as following:

12/08/2018 08:21:42 AM AMQ6287: WebSphere MQ V8.0.0.9 (p800-009-180321.1).
12/08/2018 08:21:41 AM AMQ9213: A communications error for TCP/IP occurred.
12/08/2018 08:21:41 AM AMQ9999: Channel 'QM2.V9QM2' to host '192.168.136.123(1415)' ended abnormally.

Only grep is not enough to handle, we must ask help from 'sed"

grep -o -E ".*[0-9]{2}:[0-9]{2}:[0-9]{2}\ [A,P]{,1}[M]{,1}[:space:]{,1}|AMQ[0-9]{4}:.*" AMQERR01.LOG|sed '$!N;s/\n/\ /'

grep:

-o: only print the match string
*** AIX 上的opensoure grep 要用[[:space:]]

sed:

N means read the next line (可用來合併二行)
$!N means read the next line unless it is the last line (最後一行不做)

sed   N和$!N 的理解使用

https://blog.51cto.com/goome/1749171