When Did I Last Reboot My Linux Box?

If you want to know when you did your last reboot on your Linux box, it’s actually pretty easy. This article explains how. I’m still not feeling quite up to snuff, so a quick and easy article is the call for the day!

You can run uptime in the terminal, and that will tell you how long your system has been up and running. The output will look something like this:

At this point, you could do the math and find your last reboot time. Of course, this being Linux, there’s an easier way to do this. This will be a quick (and easy) article and hopefully I’m doing a bit better tomorrow.

Find Last Reboot:

Like so many of these things, we need to start with the terminal open. You can do that by using your keyboard. Just press CTRL + ALT + T and your default terminal emulator should pop right up!

With that open, you can start with:

Which will give you an output similar to:

But, the command’s usefulness doesn’t stop there. No, no it does not! You can modify the command in a couple of ways to get some more refined response. Let’s say you only want the last three results? If so, you’d use this command:

This will give you an output like this:

You can also use ‘grep’ for your refining needs. Let’s say you want to know when you last rebooted in the month of May? Well, you can easily do that!

The output of which would look similar to this:

And, there you see it. As you can see, there were three reboots in the month of May on that box. This information may be useful for debugging reasons or even compliance reasons. How you use the information is up to you! Ain’t my job to tell you how.

Closure:

There. There’s your darned article for the day!

Seriously, yesterday’s article was really messed up. Fortunately, the kind folks at Reddit chimed in and were eager to help! The folks at Linux.org are usually good at catching the mistakes, of which there were many, but probably didn’t as the article is one from the old site and probably only skimmed it if they read it at all.

This leads me to think that I’m eventually going to have issues with getting an article up every other day. I’m still going to try, and I’ve done so since the start, but it’s pretty likely that I’ll eventually miss a day. I’ll try to take steps to not let that happen, but the real world is a fickle mistress.

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