Display any udp/tcp connections by process name or by process id

lsof -nP -c COMMAND | egrep -o '(TCP|UDP).*$' | sort -u
Where COMMAND is the process(es) name. I prefer to get all states but you may add ESTABLISHED in the grep regex. lsof -c apache2 | egrep -o 'TCP.*ESTABLISHED.*$' -nP flags are optional and UDP is irrelevant for established connections Similar but using the process id: lsof -nP -p PID | egrep -o '(TCP|UDP).*$'
Sample Output
$ lsof -nP -c apache2 | egrep -o 'TCP.*$' | sort -u
TCP *:443 (LISTEN)

$ lsof -p 17279|egrep -o '(TCP|UDP).*$'
UDP *:32435 

By: forcefsck
2011-01-25 12:04:13

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What Others Think

I’m so happy to find this information through this website which will be helpful for many people who are working with his network fields. Display any UDP or TCP connection by process name or process ID and its programming code is given on this website. Legal Status Of CBD In Texas Share this Maxx with your friend so that they can also make use of it
leonamargret · 21 weeks and 5 days ago

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

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