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Show apps that use internet connection at the moment.

Terminal - Show apps that use internet connection at the moment.
netstat -lantp | grep -i establ | awk -F/ '{print $2}' | uniq | sort
2009-09-19 13:54:36
User: ktoso
Functions: awk grep netstat uniq
-1
Show apps that use internet connection at the moment.

Can be used to discover what programms create internet traffic. Skip the part after awk to get more details.

Has anyone an idea why the uniq doesn't work propperly here (see sample output)?

Alternatives

There is 1 alternative - vote for the best!

Terminal - Alternatives
lsof -P -i -n
ss -p
2009-09-19 21:55:01
User: Escher
50

for one line per process:

ss -p | cat

for established sockets only:

ss -p | grep STA

for just process names:

ss -p | cut -f2 -sd\"

or

ss -p | grep STA | cut -f2 -d\"
lsof -P -i -n | cut -f 1 -d " "| uniq | tail -n +2
2009-09-19 21:23:54
User: edo
Functions: cut tail uniq
30

show only the name of the apps that are using internet

netstat -lantp | grep -i stab | awk -F/ '{print $2}' | sort | uniq
2009-09-19 14:54:31
User: ProMole
Functions: awk grep netstat sort
7

Show apps that use internet connection at the moment.

Can be used to discover what programms create internet traffic. Skip the part after awk to get more details, though it will not work showing only unique processes.

This version will work with other languages such as Spanish and Portuguese, if the word for "ESTABLISHED" still contain the fragment "STAB"(e.g. "ESTABELECIDO")

netstat -lantp | grep -i establ | awk -F/ '{print $2}' | sort | uniq
2009-09-19 14:42:31
User: HarimaKenji
Functions: awk grep netstat sort
4

This corrects duplicate output from the previous command.

Know a better way?

If you can do better, submit your command here.

What others think

You should sort it before you use uniq, because uniq looks only at each line and its neighbors to catch duplicates.

Comment by HarimaKenji 376 weeks ago

Hah, such simple solution! Thanks for the tip.

Comment by ktoso 376 weeks ago

Just invert: | sort | uniq , |uniq |sort , will work fine!! for the uniq command works, the repeated word have to be one after the other, for that reason use the sort command, for put words that way.

Comment by andregyn62 64 weeks and 4 days ago

Your point of view

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