#!/bin/bash
OUTPUT_DIR="${OUTPUT_DIR:-/var/log}"
filename="$OUTPUT_DIR/command_results_$(date +%F_%H-%M-%S).log"

commands=(
  "hostnamectl"
  "ip a"
  "ip route"
  "cat /etc/resolv.conf"
  "uptime"
  "who"
  "df -h"
  "free -m"
  "netstat -tuln"
  "systemctl list-units --type=service --state=running"
)

{
  echo "== Сбор информации начат: $(date) =="
  for cmd in "${commands[@]}"; do
    echo "Команда: $cmd"
    eval "$cmd" 2>&1
    echo "--------------------------------------------------"
  done
  echo "== Завершено: $(date) =="
} > "$filename"