如何将dmesg时间戳转换为自定义日期格式? [英] How do I convert dmesg timestamp to custom date format?

问题描述

我试图理解dmesg时间戳，发现很难将其转换为Java日期/自定义日期格式.

I am trying to understand the dmesg timestamp and find it hard to convert that to change it to java date/custom date format.

示例dmesg日志:

[14614.647880] airo(eth1): link lost (missed beacons)

那么如何将14614.647880转换为标准日期?

So how do I convert 14614.647880 to a standard date?

推荐答案

了解dmesg时间戳非常简单:它是内核启动以来的时间(以秒为单位).因此，有了启动时间(uptime)，您可以将秒数加起来并以您喜欢的任何格式显示它们.

Understanding dmesg timestamp is pretty simple: it is time in seconds since the kernel started. So, having time of startup (uptime), you can add up the seconds and show them in whatever format you like.

或者更好的是，您可以使用dmesg的-T命令行选项并解析人类可读的格式.

Or better, you could use the -T command line option of dmesg and parse the human readable format.

在手册页中:

-T, --ctime
    Print human readable timestamps. The timestamp could be inaccurate!

    The time source used for the logs is not updated after system SUSPEND/RESUME.

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