如果日志文件有重复，请在日志文件中获取作业停机时间(Getting Job Downtime in a Logfile if it has a duplicate)

 我正在试图找出如何确定一个特定工作的相应重启时间（工作最后完成之前的最后一次重启）（异常终止）。 
 
 例如： 
 
 
 
 Job ABC在5:00运行 
 
 
 工作ABC在5点03分退位 
 
 
 它于5:05重新启动 
 
 
 工作ABC在5:08再次出现 
 
 
 它于5:10再次重新启动 
 
 
 工作ABC于5:15完成 
 
 
 在这个例子中，我可以安全地假设首次运行在5:00的Job ABC的完成时间是5:15。 我正在尝试通过减去上次重新启动时间（5:10 - 5:03 = 7分钟停机时间）来计算Job ABC的停机时间。 
 
 这是我做的第一次失败和最后一次重启的时间： 
 
grep abended logfile | head -1   #first failure
grep restarted logfile | tail -1 #last restart
 
 但问题是，如果另一个Job ABC在6点运行呢？ 
 
 说吧， 
 
 
 
 另一个ABC工作时间是6点。 
 
 
 它在6点03分消失了。 
 
 
 它于6:05重新启动 
 
 
 工作ABC于6:07完成。 
 
 
 如果是这种情况，我不能再使用我上面所述的头部和尾部了。 
 
 如何判断6:05的重启是否与6:03时首次出现的另一个Job ABC相对应？ 
 
 顺便说一下，我正在尝试创建一个自动化工具来获取作业的停机时间，我唯一的参考是一个纯文本日志文件，每24小时自动创建一次。 
 
 注意：我正在使用Bash脚本。 

I'm trying to figure out how to determine the corresponding restart time (the last restart before job finally completed) of a specific job that abended (abnormal termination). 
 
For example:
 
 
 
Job ABC ran at 5:00 
 
 
Job ABC abended at 5:03
 
 
It was restarted at 5:05
 
 
Job ABC abended again at 5:08
 
 
It was restarted again at 5:10
 
 
Job ABC completed at 5:15
 
 
In this example, I can safely assume that the completion time of Job ABC which first ran at 5:00 is 5:15. I’m trying to compute the downtime of Job ABC by subtracting the time it was last restarted from the first time it abended ( 5:10 – 5:03 = 7mins downtime).
 
This is what I did to get the first failure and the last restart time:
 
grep abended logfile | head -1   #first failure
grep restarted logfile | tail -1 #last restart
 
But the problem is what if another Job ABC runs at 6:00?
 
Let say,
 
 
 
Another Job ABC ran at 6:00.
 
 
It abended at 6:03.
 
 
It was restarted at 6:05
 
 
Job ABC completed at 6:07.
 
 
I can no longer use the head and tail I stated above if this is the case.
 
How can I tell if the restart at 6:05 corresponds to another Job ABC which first abended at 6:03?
 
By the way, I’m trying to create an automated tool that will get the downtime of a job and my only reference is a plain text log file which is auto created every 24hours. 
 
NOTE: I'm using Bash script.

原文：https://stackoverflow.com/questions/16478855