Linux Utility - find which process is using a specific port

findPort2Process.sh

#!/bin/bash 

#### ------------------------- Use ----------------------------
#### To find our what PID/Process is binding to a specific port
#### ----------------------------------------------------------

if [ $# -lt 1 ]; then
    echo "Usage: $0 <port-to-search-process>"
    exit 1
fi
_port=${1}
echo "---- Port info ----"
sudo netstat -antup|grep ":$_port"

echo "---- PID  info ----"
for _pid in `sudo netstat -antup|grep ":$_port"|awk '{print $6}'|cut -d'/' -f1`; do
    ps -elf | grep $_pid |grep -v grep
done
echo

#### Background
#ps -elf | grep "$(sudo netstat -antup|grep "::2979"|awk '{print $6}'|cut -d'/' -f1)"
#ps -elf | grep "$(sudo netstat -antup|grep "::$_port"|awk '{print $6}'|cut -d'/' -f1)"
#ps -aux | grep "$(sudo netstat -antup|grep "::$_port"|awk '{print $6}'|cut -d'/' -f1)"