Java和Linux脚本操作：如何提高工作效率

import java.io.File;
import java.io.IOException;

public class FileExample {
   public static void main(String[] args) {
      try {
         File file = new File("newfile.txt");
         if (file.createNewFile()) {
            System.out.println("文件创建成功！");
         } else {
            System.out.println("文件已存在！");
         }
      } catch (IOException e) {
         e.printStackTrace();
      }
   }
}

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;

public class HttpExample {

   private final String USER_AGENT = "Mozilla/5.0";

   public static void main(String[] args) throws Exception {

      HttpExample http = new HttpExample();

      System.out.println("发送HTTP GET请求...");

      http.sendGet();
   }

   private void sendGet() throws Exception {

      String url = "http://www.example.com";

      URL obj = new URL(url);
      HttpURLConnection con = (HttpURLConnection) obj.openConnection();

      con.setRequestMethod("GET");

      con.setRequestProperty("User-Agent", USER_AGENT);

      int responseCode = con.getResponseCode();
      System.out.println("响应代码：" + responseCode);

      BufferedReader in = new BufferedReader(
              new InputStreamReader(con.getInputStream()));
      String inputLine;
      StringBuffer response = new StringBuffer();

      while ((inputLine = in.readLine()) != null) {
         response.append(inputLine);
      }
      in.close();

      System.out.println(response.toString());
   }
}

#!/bin/bash

echo "开始创建文件..."

touch newfile.txt

if [ -e newfile.txt ]; then
   echo "文件创建成功！"
else
   echo "文件创建失败！"
fi

#!/bin/bash

echo "开始安装软件..."

apt-get install package_name