const { Client } = require('ssh2');
const conn = new Client();
conn.on('ready', () => {
  // Get lines 250-450 to see the first FC result and second FC callback
  const cmd = `awk '/2026-03-12 11:18:09/{found=1} found' /var/log/bigwo/server-out.log | sed -n '250,450p'`;
  conn.exec(cmd, (err, stream) => {
    if (err) { console.error('exec error:', err); conn.end(); return; }
    let out = '';
    stream.on('data', d => out += d.toString());
    stream.stderr.on('data', d => process.stderr.write(d));
    stream.on('close', () => {
      console.log(out || '(no output)');
      conn.end();
    });
  });
}).on('error', err => {
  console.error('SSH error:', err.message);
}).connect({
  host: '119.45.10.34',
  port: 22,
  username: 'root',
  password: '#xyzh%CS#2512@28',
  readyTimeout: 10000,
});