Listening

listening.sh

Mac OSX:
listening () {
	lsof -Pni | grep '(LISTEN)' | awk 'BEGIN {printf "%-15s %5s %21s\n", "Command", "PID", "PORT"} {printf "%-15s %5s %21s\n", $1,$2,$9}'
}

Linux (if you want non-you processes that are listening):
listening () {
	sudo lsof -Pni | grep '(LISTEN)' | awk 'BEGIN {printf "%-15s %5s %21s\n", "Command", "PID", "PORT"} {printf "%-15s %5s %21s\n", $1,$2,$9}'
}

For linux you can copy the function into a new file called(or any other name): /etc/profile.d/listening.sh.

thanks james