[go-每日一库] golang 通过os/exec执行shell命令

直接上代码：

package main

import (
	"fmt"
	"os/exec"
	"time"
)

func main()  {
	// 执行并等待结束，正确执行返回nil error， 同步
	fmt.Println("cmd with run,", time.Now())
	cmd := exec.Command("sleep", "10")
	_ = cmd.Run() // start + wait
	fmt.Println("exec end, ", <- time.After(10*time.Second))
	/*
	cmd with run, 2022-06-25 10:34:35.6105608 +0800 CST m=+0.002574201
	exec end,  2022-06-25 10:34:45.6328703 +0800 CST m=+10.024849701
	 */

	// 执行但不等待结束，异步
	fmt.Println("cmd with start,", time.Now())
	cmd1 := exec.Command("sleep", "10")
	_ = cmd1.Start()

	fmt.Println("exec start end")
	/*
	cmd with start, 2022-06-25 10:34:45.6328703 +0800 CST m=+10.024849701
	exec start end
	 */
}

参考：

• go os/exec 简明教程