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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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Universal configuration monitoring and system of record for IT.
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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.
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I'm Jon, I'll be maintaining and improving clfu. Thanks to David for building such a great resource!
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Force hard reset on server

Terminal - Force hard reset on server
echo 1 > /proc/sys/kernel/sysrq; echo b > /proc/sysrq-trigger
2009-07-31 19:07:40
User: tiagocruz
Functions: echo
2
Force hard reset on server

Useful when you have some wrong on a server (nfs freeze/ immortal process)

Alternatives

There are 3 alternatives - vote for the best!

Terminal - Alternatives

Know a better way?

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What others think

awesome

Comment by linuxrawkstar 383 weeks and 1 day ago

And when you are local and the system is really locked up, you can do this with Alt+SysRq+b. You can add some other sysrq keys too to make the forced reboot less painful:

Alt+SysRq+s: emergency sync filesystems

Alt+SysRq+r: remount filesystems read-only

among others. http://en.wikipedia.org/wiki/Magic_SysRq_key

Comment by bwoodacre 383 weeks and 1 day ago

Coolness. goodbye NFS freezes

Comment by rajaseelan 383 weeks and 1 day ago

Your point of view

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