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Show the command line of a process that use a specific port (ubuntu)

Terminal - Show the command line of a process that use a specific port (ubuntu)
port=8888;pid=$(lsof -Pan -i tcp -i udp | grep ":$port"|tr -s " " | cut -d" " -f2); ps -Afe|grep "$pid"|grep --invert-match grep | sed "s/^\([^ ]*[ ]*\)\{7\}\(.*\)$/\2/g"
2010-01-11 17:49:22
User: glaudiston
Functions: cut grep ps sed tr
Show the command line of a process that use a specific port (ubuntu)

A way not so simple but functional for print the command for the process that's listening a specific port.

I got the pid from lsof because I think it's more portable but can be used netstat

netstat -tlnp


There are 5 alternatives - vote for the best!

Terminal - Alternatives
cat /proc/$(lsof -ti:8888)/cmdline | tr "\0" " "

Know a better way?

If you can do better, submit your command here.

What others think

Why not just simply:

lsof -i:8888
Comment by din7 332 weeks and 5 days ago

because lsof -i:8888 do not show the command executed, in my sample the show is only:

lsof -i:8888


java 1949 username 213u IPv6 12317041 TCP *:8888 (LISTEN)

my way show the full command line:

port=8888;pid=$(lsof -Pan -i tcp -i udp | grep ":$port"|tr -s " " | cut -d" " -f2); ps -Afe|grep "$pid"|grep --invert-match grep | sed "s/^\([^ ]*[ ]*\)\{7\}\(.*\)$/\2/g"

java -Dcom.sun.management.jmxremote -Xmx1024m -XX:MaxPermSize=300m -server -Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=8885 -jar /oc4j/j2ee/home/oc4j.jar -err

I think usefull...

if you know other way, let me now.

Comment by glaudiston 332 weeks and 4 days ago

lsof gets you the pid, and you can get the command line from /proc/$pid/cmdline, at least in linux.

Comment by bwoodacre 332 weeks and 4 days ago

thanks to bwoodacre:

cat /proc/$(lsof -ti:8888)/cmdline
Comment by glaudiston 326 weeks and 3 days ago

Your point of view

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