const { Client } = require("ssh2");
const c = new Client();
c.on("ready", () => {
  // 搜索包含"产品"的日志行，以及 processReply/handoff 相关行
  c.exec('tail -50 /var/log/bigwo/server-out.log | grep -E "greeting|upstream|tts_event|assistant|rag|ready|error"', (err, s) => {
    if (err) { console.error(err); c.end(); return; }
    let o = "";
    s.on("data", (d) => (o += d));
    s.stderr.on("data", (d) => (o += d));
    s.on("close", () => { console.log(o); c.end(); });
  });
}).connect({ host: "119.45.10.34", port: 22, username: "root", password: "#xyzh%CS#2512@28" });