Nice Work

kill-ports.sh

@@ -0,0 +1,76 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+PORTS=(5001 5174 8000 9000 8001 9001)
+
+have_lsof() {
+  command -v lsof >/dev/null 2>&1
+}
+
+have_ss() {
+  command -v ss >/dev/null 2>&1
+}
+
+list_listeners_lsof() {
+  local port="$1"
+  lsof -nP -iTCP:"${port}" -sTCP:LISTEN 2>/dev/null || true
+}
+
+list_listeners_ss() {
+  local port="$1"
+  ss -ltnp "sport = :${port}" 2>/dev/null || true
+}
+
+kill_pid() {
+  local pid="$1"
+  kill -TERM "$pid" 2>/dev/null || true
+}
+
+found_any=false
+
+for port in "${PORTS[@]}"; do
+  if have_lsof; then
+    output="$(list_listeners_lsof "$port")"
+    if [[ -z "$output" ]]; then
+      continue
+    fi
+    found_any=true
+    echo "Port ${port}:"
+    echo "$output"
+    pids=$(echo "$output" | awk 'NR>1 {print $2}' | sort -u)
+  elif have_ss; then
+    output="$(list_listeners_ss "$port")"
+    if [[ -z "$output" ]]; then
+      continue
+    fi
+    found_any=true
+    echo "Port ${port}:"
+    echo "$output"
+    pids=$(echo "$output" | awk -F 'pid=' 'NF>1 {print $2}' | awk -F ',' '{print $1}' | sort -u)
+  else
+    echo "error: neither lsof nor ss is available"
+    exit 1
+  fi
+
+  if [[ -z "$pids" ]]; then
+    continue
+  fi
+
+  read -r -p "Kill these PIDs on port ${port}? (y/n) " answer
+  if [[ "$answer" != "y" ]]; then
+    echo "Skipping port ${port}."
+    continue
+  fi
+
+  for pid in $pids; do
+    echo "Killing PID ${pid} (port ${port})"
+    kill_pid "$pid"
+  done
+  echo "Done for port ${port}."
+  echo ""
+
+done
+
+if [[ "$found_any" == "false" ]]; then
+  echo "No listeners found on ports: ${PORTS[*]}"
+fi