Shell - Kill process

kill_process_port.sh

#!/bin/bash

port=3000

if [ $# -gt 0 ]; then
    port=$1
fi

process_pid=$(lsof -i :$port | grep "LISTEN" | awk '{print $2}')

if [ -n "$process_pid" ]; then
    echo "Process PID found on port $port: $process_pid"
    
    kill -9 "$process_pid"
    echo "Process killed successfully."
else
    echo "No process running on port $port."
fi