Linux – How to find full process arguments and associated listening ports

bashlinuxlsofnetstatps

I can execute netstat -atulpn | grep java to find all Java processes with their accompanying ports, which is great, however I would like to also have the processes full execution arguments also shown. I don't believe that this is possible with netstat from everything I've explored so far and so I was thinking that I would have to write a script to process the output of netstat and then pass the pids into ps and then prettify the output to show the ip+port and full command line.

Is there a better way of doing this or is this about the only option?

Best Answer

ss -lnptu piped to awk with a call to ps -p. I'm on a mobile device, so it is a little tricky to type out a full example at the moment.

Listening Sockets:

ss -lnptu | awk 'NR>1 { split($7,p,","); printf "Listen: "$5 " Command: "; system("ps --no-headers -o args p "p[2]); }'

All Sockets (will likely require some additional filtering due to sockets without process information in TIME_WAIT, etc):

ss -anptu state listening state established state connected state unconnected | grep -v TIME_WAIT | awk 'NR>1 { split($7,p,","); printf "Listen: "$5 " Command: "; system("ps --no-headers -o args p "p[2]); }'

 

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