Lists all listening ports together with the PID of the associated process

netstat -anpe
Lists all opened sockets (not only listeners), no DNS resolution (so it's fast), the process id and the user holding the socket. Previous samples were limiting to TCP too, this also lists UDP listeners.
Sample Output
anarcat@desktop006:~$ sudo netstat -anpe
Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address           Foreign Address         State       User       Inode       PID/Program name
tcp        0      0*               LISTEN      10001      4231907     18055/ssh
tcp        0      0  *               LISTEN      10001      239116      13676/gmpc
tcp        0      0        ESTABLISHED 10001      4287328     2466/chromium-brows
tcp6       0      0 :::22                   :::*                    LISTEN      0          5382        1239/sshd
udp        0      0 *                           105        5647        1315/avahi-daemon:

By: anarcat
2011-12-06 18:27:09

4 Alternatives + Submit Alt

  • This command is more portable than it's cousin netstat. It works well on all the BSDs, GNU/Linux, AIX and Mac OS X. You won't find lsof by default on Solaris or HPUX by default, but packages exist around the web for installation, if needed, and the command works as shown. This is the most portable command I can find that lists listening ports and their associated pid. Show Sample Output

    lsof -Pan -i tcp -i udp
    atoponce · 2010-06-07 15:22:44 4
  • While `lsof` will work, why not use the tool designed explicitly for this job? (If not run as root, you will only see the names of PID you own) Show Sample Output

    netstat -plnt
    DopeGhoti · 2011-09-30 19:56:32 0
  • Alternative of OJM snippet : This one show the IP too, where ports bind. It's very important, because if there's only instead of, connections from internet are rejected.

    netstat -nptl
    sputnick · 2009-12-11 10:23:43 1
  • Shows you all listening tcp/udp ports, and what program has them open(depending on rights)

    netstat -tunlp
    ender_x · 2010-06-07 13:26:05 0

What do you think?

Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?

You must be signed in to comment.

What's this? is the place to record those command-line gems that you return to again and again. 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.

Share Your Commands

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.


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: