linux - Golang如何阻止signal传递给os/exec执行的命令

Answer 1

重新翻了我的舊程式碼，然後再拿出來測試了可以!

package main

import (
    "fmt"
    "log"
    "os"
    "os/exec"
    "os/signal"
    "syscall"
    "time"
)

func docmd(Num int) {
    time.Sleep(time.Second * 3)
    
    cmd := exec.Command("hostname")
    buf, err := cmd.Output()
    if err != nil {
        fmt.Println(err.Error())
        return
    }

    fmt.Printf("%d Result: %s", Num, buf)
}

func main() {
    signalChan := make(chan os.Signal, 1)
    signal.Notify(signalChan, syscall.SIGINT, syscall.SIGTERM)
    go func() {
        for {
            select {
            case <-signalChan:
                log.Println("正在结束！")
                docmd(10)
                os.Exit(0)
            }
        }
    }()

    docmd(1)
    fmt.Println("How much can I fuck you?")
    docmd(2)

    time.Sleep(time.Second * 10)
}