Check if a process exists in go way

Question

If I have the PID of a process, is os.FindProcess enough to test for the existing of the process? I mean if it returns err can I assume that it\'s terminated (o

Answer 1

After searching for a few hours, the correct answer to know if a process is running on Windows is the following:

func CheckProcessLife(pid int){
    cmd,_ := exec.Command("tasklist","/FI", "PID eq " + strconv.Itoa(pid)).Output()
    output := string(cmd[:])
    splitOutp := strings.Split(output, " ")
    if !(splitOutp[1] == "no") {
        time.Sleep(500 * time.Millisecond)
        fmt.Println("Process is running...")
        CheckProcessLife(pid)
    }else{
        fmt.Println("Process is no longer running.")
    }
}

You can check if the process is running with his PID or directly with his name, only change this line:

cmd,_ := exec.Command("tasklist","/FI", "IMAGENAME eq yourprocessname.exe").Output()