kill_port

#!/bin/bash

# Check if the script is run without an argument
if [ -z "$1" ]; then
  echo "Usage: $0 <port>"
  exit 1
fi

# Check if the script is run as root
if [[ $EUID -ne 0 ]]; then
  echo "This script must be run as root"
  exit 1
fi

# Check if lsof is installed
if ! command -v lsof &>/dev/null; then
  echo "lsof could not be found, please install it."
  exit
fi

# The port you're looking to free up
PORT=$1

# Finding the PID of the process using the port
PIDS=$(lsof -t -i:$PORT -sTCP:LISTEN)

# Check if any process is found
if [ -z "$PIDS" ]; then
  echo "No process is using port $PORT"
  exit 0
fi

# Killing the process
echo "Killing process on port $PORT"
for PID in $PIDS; do
  kill -9 $PID
  echo "Killed process with PID $PID"
done

echo "Port $PORT is now free!"

exit 0