diff --git a/20251016.md b/20251016.md
index 5acff1d..105bc00 100644
--- a/20251016.md
+++ b/20251016.md
@@ -1,71 +1,17 @@
-## 1、下载并上传 openjdk zulu 21 压缩包
+## 新建目录
 
-- 下载地址：https://www.azul.com/downloads/?version=java-21-lts&package=jdk#zulu
-- 解压到 /hook/jdk21 目录下
-
-## 2、上传 TShark.java 文件，源码如下
-
-```java
-import java.io.*;
-import java.nio.file.Path;
-import java.time.ZoneId;
-import java.util.List;
-import java.util.TimeZone;
-
-public final class TShark {
-    public static void main(String[] args) throws Exception {
-        TimeZone.setDefault(TimeZone.getTimeZone(ZoneId.of("Asia/Shanghai")));
-        Path path = Path.of("shark.log");
-        File sharkLog = path.toFile();
-        if (!sharkLog.exists() && !sharkLog.createNewFile()) {
-            throw new RuntimeException("create shark.log failure");
-        }
-//        DateTimeFormatter timeFormatter = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss");
-        Process process = startSharkProcess();
-        System.out.println("start tshark success");
-        startProcessSharkThread(process, sharkLog);
-        System.out.println("start process thread success");
-        int exitCode = process.waitFor();
-        System.out.println("tshark process is dead, exit code: " + exitCode);
-    }
-
-    private static void startProcessSharkThread(Process process, File sharkLog) {
-        Thread thread = new Thread(() -> {
-            try (BufferedReader reader = new BufferedReader(new InputStreamReader(process.getInputStream()));
-                 BufferedWriter fileWriter = new BufferedWriter(new FileWriter(sharkLog, true))) {
-                String line;
-                while ((line = reader.readLine()) != null) {
-                    fileWriter.write(line + System.lineSeparator());
-                }
-                fileWriter.flush();
-            } catch (Exception e) {
-                e.printStackTrace();
-            }
-        });
-        thread.setName("TShark-thread");
-        thread.start();
-    }
-
-    public static Process startSharkProcess() throws IOException {
-        List<String> cmd = List.of(
-                "tshark",
-                "-l",
-                "-i",
-                "\\Device\\NPF_{807C63AC-179D-4AC8-BD56-85CE8AA179DB}",
-                "-Y",
-                "tcp.port == 33000 && http.request.method == \"POST\"",
-                "-V"
-        );
-        ProcessBuilder processBuilder = new ProcessBuilder(cmd);
-        processBuilder.redirectErrorStream(true);
-        return processBuilder.start();
-    }
-}
 ```
+mkdir -p /hook/java
+mkdir -p /hook/jdk21
+```
+## 上传文件
 
-## 3、修改网卡名称
+- JDK解压到 /hook/jdk21 目录下，注意目录结构，确保 /hook/jdk21 目录下包含**/bin**目录
+- 将 TShark.java 上传到 /hook/java 目录下
 
-##### 编辑`TShark.java`文件，找到 **startSharkProcess** 函数
+## 修改 TShark.java 文件中的一行
+
+##### 找到 **startSharkProcess** 函数
 
 ```java
 public static Process startSharkProcess() throws IOException {
@@ -73,7 +19,8 @@ public static Process startSharkProcess() throws IOException {
                 "tshark",
                 "-l",
                 "-i",
-                "\\Device\\NPF_{807C63AC-179D-4AC8-BD56-85CE8AA179DB}",
+                // 把这一行网卡名称，替换成正确的网卡名称，下面这个是我自己电脑上的网卡名称
+                "\\Device\\NPF_{807C63AC-179D-4AC8-BD56-85CE8AA179DB}",// 修改后应该是："ethxxx",
                 "-Y",
                 "tcp.port == 33000 && http.request.method == \"POST\"",
                 "-V"
@@ -83,13 +30,42 @@ public static Process startSharkProcess() throws IOException {
         return processBuilder.start();
     }
 ```
-##### 把这一行网卡名称，替换成正确的网卡名称，下面这个是我自己电脑上的网卡名称
 
-```
-"\\Device\\NPF_{807C63AC-179D-4AC8-BD56-85CE8AA179DB}"
-```
+##### 查本机IP网卡的命令
 
-不确定当前IP使用的哪个网卡，可以用下面这个命令查询
 ```
 ip a
+```
+
+## 创建一个 shell 脚本，用于后台运行 java 脚本
+
+##### 创建脚本
+```
+vi /hook/tshark_bash.sh
+```
+
+##### 复制粘贴下面内容然后保存
+
+```bash
+#!/bin/bash
+
+export JAVA_HOME=/hook/jdk21
+export PATH=$JAVA_HOME/bin:$PATH
+export CLASSPATH=.:$JAVA_HOME/lib
+java /hook/java/TShark.java
+```
+
+##### 赋予执行权限
+```
+sudo chmod +x /hook/tshark_bash.sh
+```
+
+##### 后台运行
+```
+sudo nohup bash /hook/tshark_bash.sh >> /hook/tshark_bash.log 2>&1 & echo $! > /hook/tshark_bash.pid
+```
+
+#### 停止运行
+```
+kill -9 $(cat /hook/tshark_bash.pid)
 ```
\ No newline at end of file