What's this?

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.

Get involved!

You can sign-in using OpenID credentials, or register a traditional username and password.

First-time OpenID users will be automatically assigned a username which can be changed after signing in.

Universal configuration monitoring and system of record for IT.

Stay in the loop…

Follow the Tweets.

Every new command is wrapped in a tweet and posted to Twitter. Following the stream is a great way of staying abreast of the latest commands. For the more discerning, there are Twitter accounts for commands that get a minimum of 3 and 10 votes - that way only the great commands get tweeted.

» http://twitter.com/commandlinefu
» http://twitter.com/commandlinefu3
» http://twitter.com/commandlinefu10

Subscribe to the feeds.

Use your favourite RSS aggregator to stay in touch with the latest commands. There are feeds mirroring the 3 Twitter streams as well as for virtually every other subset (users, tags, functions,…):

Subscribe to the feed for:



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!

Top Tags



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

connect via ssh using mac address

Terminal - connect via ssh using mac address
sudo arp -s 00:35:cf:56:b2:2g temp && ssh [email protected]
2009-09-11 07:49:28
User: svg
Functions: arp ssh sudo
connect via ssh using mac address

Instead of looking for the right ip address, just pick whatever address you like and set a static ip mapping.


There are 3 alternatives - vote for the best!

Terminal - Alternatives
ssh root@`for ((i=100; i<=110; i++));do arp -a 192.168.1.$i; done | grep 00:35:cf:56:b2:2g | awk '{print $2}' | sed -e 's/(//' -e 's/)//'`
2009-09-09 04:32:20
User: gean01
Functions: arp awk grep sed ssh

Connect to a machine running ssh using mac address by using the "arp" command

Know a better way?

If you can do better, submit your command here.

What others think

Does this require the chosen address to be on the same subnet as the computer from which you are ssh-ing?

Comment by clindseysmith 370 weeks and 4 days ago

@clindseysmith yes, it does.

Comment by svg 370 weeks and 4 days ago

@svg this doesn't work for me. My two devices are both connected to a CISCO 2960 switch. Maybe my switch is being too fancy? My issue is that I'm swapping devices on and off my test network as I test them before fielding them. Each device has its MAC printed on it but I don't know for sure what IP the last person to configure the device used... so I thought this command would be perfect but I can't seem to get it to work.

Comment by clindseysmith 370 weeks ago

Your point of view

You must be signed in to comment.