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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.
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:

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

List open TCP/UDP ports

Terminal - List open TCP/UDP ports
lsof -i tcp -i udp
2009-10-06 02:27:25
User: raspi
2
List open TCP/UDP ports

Alternatives

There are 3 alternatives - vote for the best!

Terminal - Alternatives
netstat -anp --tcp --udp | grep LISTEN
netstat -ltun
2009-10-05 08:39:03
User: Decoy
Functions: netstat
0

Works only on Linux.

Last option (n) turn name of service resolving (/etc/services) off.

Know a better way?

If you can do better, submit your command here.

What others think

Just a small remark for FreeBSD users:

On FreeBSD lsof works, too, but you have to install it first from the Ports Collection.

I recommend to use "sockstat -l" instead on FreeBSD. It produces much nicer and more useful output, and it's part of the base system so you don't have to install any additional software.

Comment by inof 374 weeks and 4 days ago

Your point of view

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