package main

import (
	"bufio"
	"fmt"
	"os/exec"
	"strings"
)

func main() {
	// 调用mpstat命令获取CPU使用情况，这里假设系统已经安装了sysstat包
	cmd := exec.Command("mpstat", "-P", "ALL")
	stdout, err := cmd.StdoutPipe()
	if err != nil {
		fmt.Println("Error creating stdout pipe:", err)
		return
	}

	if err := cmd.Start(); err != nil {
		fmt.Println("Error starting command:", err)
		return
	}

	scanner := bufio.NewScanner(stdout)
	fmt.Println("CPU Usage:")
	for scanner.Scan() {
		line := scanner.Text()
		// 跳过标题行
		if strings.Contains(line, "CPU") {
			continue
		}
		fmt.Println(line)
	}

	if err := cmd.Wait(); err != nil {
		fmt.Println("Error waiting for command:", err)
	}
}