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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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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:

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Your feedback is appreciated via the form on the beta page. Thanks! -Jon & CLFU Team

ssh hostchange know_host improver

Terminal - ssh hostchange know_host improver
sshostnew () {sed -i "$1d" $HOME/.ssh/known_hosts ; }
2011-11-07 10:33:04
User: _john
-1
ssh hostchange know_host improver

If you work in an environment, where some ssh hosts change regularly this might be handy...

Alternatives

There is 1 alternative - vote for the best!

Terminal - Alternatives

Know a better way?

If you can do better, submit your command here.

What others think

ssh-keygen can do this for you:

ssh-keygen -R <hostname> ssh-keygen --help 2>&1 | grep -- -R

-R hostname Remove host from known_hosts file.

Comment by joshenders 251 weeks and 1 day ago

Uhh nice. For my special use I'll continue use the function, since the line in known_hosts is just 2 digits and the "hostname" some v6 address...

--help is not an option of openssh ssh-keygen.

Anyway, thanks for the hint!

Comment by _john 250 weeks and 4 days ago

Your point of view

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