From bba44b1f1a92f42ce7680145b9b947bb4f6662f8 Mon Sep 17 00:00:00 2001
From: Paulo Nonato <paulononato@elevartech.com.br>
Date: Sun, 19 Apr 2026 00:24:46 -0300
Subject: [PATCH] Add scripts/server_health_check.sh

---
 scripts/server_health_check.sh | 93 ++++++++++++++++++++++++++++++++++
 1 file changed, 93 insertions(+)
 create mode 100644 scripts/server_health_check.sh

diff --git a/scripts/server_health_check.sh b/scripts/server_health_check.sh
new file mode 100644
index 0000000..33206ef
--- /dev/null
+++ b/scripts/server_health_check.sh
@@ -0,0 +1,93 @@
+#!/usr/bin/env bash
+#
+# Run a simple server health check.
+#
+# The script reports CPU load, memory usage, disk usage, network interfaces,
+# listening ports, and the top processes by CPU and memory.
+#
+# Usage:
+#   bash server_health_check.sh
+#   bash server_health_check.sh --output /tmp/server-health.txt
+#
+# Options:
+#   --output FILE   Save the report to a file.
+#   --help          Show this help message.
+
+set -Eeuo pipefail
+
+output_file=""
+
+usage() {
+  sed -n '2,15p' "$0" | sed 's/^# \{0,1\}//'
+}
+
+section() {
+  printf '\n===== %s =====\n' "$1"
+}
+
+run_report() {
+  section "SERVER"
+  printf 'Hostname: %s\n' "$(hostname)"
+  printf 'Date: %s\n' "$(date '+%Y-%m-%d %H:%M:%S')"
+  printf 'Uptime: %s\n' "$(uptime -p 2>/dev/null || uptime)"
+
+  section "CPU"
+  printf 'Load average: %s\n' "$(awk '{print $1, $2, $3}' /proc/loadavg)"
+  if command -v top >/dev/null 2>&1; then
+    top -bn1 | head -n 5
+  fi
+
+  section "MEMORY"
+  free -h
+
+  section "DISK"
+  df -hT | grep -vE 'tmpfs|devtmpfs'
+
+  section "NETWORK INTERFACES"
+  if command -v ip >/dev/null 2>&1; then
+    ip -brief address
+  else
+    ifconfig 2>/dev/null || true
+  fi
+
+  section "LISTENING PORTS"
+  if command -v ss >/dev/null 2>&1; then
+    ss -tulpen 2>/dev/null || ss -tulpen
+  elif command -v netstat >/dev/null 2>&1; then
+    netstat -tulpen 2>/dev/null || netstat -tulpn
+  else
+    printf 'Neither ss nor netstat is available.\n'
+  fi
+
+  section "TOP PROCESSES BY CPU"
+  ps -eo pid,user,comm,%cpu,%mem --sort=-%cpu | head -n 11
+
+  section "TOP PROCESSES BY MEMORY"
+  ps -eo pid,user,comm,%cpu,%mem --sort=-%mem | head -n 11
+}
+
+while [[ "$#" -gt 0 ]]; do
+  case "$1" in
+    --output)
+      output_file="${2:-}"
+      shift 2
+      ;;
+    --help|-h)
+      usage
+      exit 0
+      ;;
+    *)
+      printf 'ERROR: unknown option: %s\n' "$1" >&2
+      usage >&2
+      exit 1
+      ;;
+  esac
+done
+
+if [[ -n "$output_file" ]]; then
+  run_report > "$output_file"
+  printf 'Health check saved to %s\n' "$output_file"
+else
+  run_report
+fi
+