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commandlinefu.com is the place to record those command-line gems that you return to again and again.

Delete that bloated snippets file you've been using and share your personal repository with the world. That way others can gain from your CLI wisdom and you from theirs too. All commands can be commented on, discussed and voted up or down.

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May 19, 2015 - A Look At The New Commandlinefu
I've put together a short writeup on what kind of newness you can expect from the next iteration of clfu. Check it out here.
March 2, 2015 - New Management
I'm Jon, I'll be maintaining and improving clfu. Thanks to David for building such a great resource!

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Psst. Open beta.

Wow, didn't really expect you to read this far down. The latest iteration of the site is in open beta. It's a gentle open beta-- not in prime-time just yet. It's being hosted over at UpGuard (link) and you are more than welcome to give it a shot. Couple things:

  • » The open beta is running a copy of the database that will not carry over to the final version. Don't post anything you don't mind losing.
  • » If you wish to use your user account, you will probably need to reset your password.
Your feedback is appreciated via the form on the beta page. Thanks! -Jon & CLFU Team

how long system has been running

Terminal - how long system has been running
last reboot
2009-08-19 11:04:34
Functions: last
how long system has been running


There are 3 alternatives - vote for the best!

Terminal - Alternatives

Know a better way?

If you can do better, submit your command here.

What others think

I don't know if it's different from Mac OS X's last reboot, but there for man says: "he pseudo-user reboot logs in at reboots of the system, thus ``last reboot'' will give an indication of mean time between reboot."

So "uptime" fits better to your headline.

Comment by unixmonkey4833 374 weeks and 4 days ago

nothing wrong with this command. I can't see why it would be downvoted, except that it's both simple and well known and some might think it insults their intelligence. I however think it adds value to commandlinefu when even the simplest of commands can be found by the novice or newbie...even commands as simple as `uptime`.

Comment by linuxrawkstar 374 weeks and 2 days ago

Your point of view

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