{
  "slug": "recent-log-errors",
  "title": "Show Only Recent Errors",
  "fixture": "containers/log-lab",
  "command_count": 3,
  "container_tool": "docker",
  "image": "localhost/linuxoneliners-lab:latest",
  "exit_code": 0,
  "elapsed_ms": 196,
  "stdout": "::fixture-ready::\n$ tail -n 5 /var/log/nginx/error.log\n2026/06/25 10:00:01 [notice] 11#11: start worker process\n2026/06/25 10:01:42 [error] 11#11: *7 connect() failed (111: Connection refused) while connecting to upstream\n2026/06/25 10:02:05 [warn] 11#11: upstream server temporarily disabled\n2026/06/25 10:03:16 [error] 11#11: *9 access forbidden by rule, client: 203.0.113.44\n2026/06/25 10:04:33 [error] 11#11: *10 upstream timed out while reading response header\n::exit-code::0\n$ grep -iE 'error|failed|denied|timeout' /var/log/nginx/error.log | tail -10\n2026/06/25 10:01:42 [error] 11#11: *7 connect() failed (111: Connection refused) while connecting to upstream\n2026/06/25 10:03:16 [error] 11#11: *9 access forbidden by rule, client: 203.0.113.44\n2026/06/25 10:04:33 [error] 11#11: *10 upstream timed out while reading response header\n::exit-code::0\n$ grep -inE 'error|failed|denied|timeout' /var/log/nginx/error.log | tail -10\n2:2026/06/25 10:01:42 [error] 11#11: *7 connect() failed (111: Connection refused) while connecting to upstream\n4:2026/06/25 10:03:16 [error] 11#11: *9 access forbidden by rule, client: 203.0.113.44\n5:2026/06/25 10:04:33 [error] 11#11: *10 upstream timed out while reading response header\n::exit-code::0\n",
  "stderr": "",
  "ok": true,
  "security": {
    "network": "none",
    "capabilities": "dropped",
    "no_new_privileges": true,
    "memory": "256m",
    "cpus": "1",
    "pids_limit": 128,
    "tmpfs": [
      "/tmp",
      "/var"
    ]
  }
}