get all pid with tcp port filtered by ipv4, command, user, and listening tcp connections

lstun.sh

#!/usr/bin/env bash

# show pid and port from matcher
MATCHER=$1
if [ -n "$MATCHER" ]; then
    sudo lsof -aPn -i4 -cnode -u${USER} -sTCP:LISTEN | grep $MATCHER | awk '{print $2 "|" $9}';
    exit 0;
fi;

# show all ssh tunnel tcp connections
sudo lsof -aPn -i4 -cnode -u${USER} -sTCP:LISTEN | tail -n +2 | awk '{print $2 "|" $9}';