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31

How to make ls produce ISO 8601 format

rated 0 times [ 31] [ 0] / answers: 1 / hits: 7528 / 3 Years ago, fri, may 28, 2021, 4:27:08

In older versions of Ubuntu, like 9.10, ls(1) produced ISO 8601 format by default, in the way

ls -l --time-style=long-iso

does it. With 12.04, we're back at the older Unix style. Thus replacing the year by minutes and seconds for recent dates.

How can I - in the least intrusive manner change this back to long-iso? Is there maybe some general configuration option?

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answered 3 Years ago lasagnerhead · Accepted Answer

I know this question is quite old (more than 1 year old), but for posterity, let me share the tip as originally described in this blog post (not mine). In summary, this one line does everything you want:

export TIME_STYLE=long-iso

stick that line into /etc/profile, or a file in /etc/profile.d/, or even in ~/.bashrc, and you're good to go.