1.6 获取程序运行的pid

package main

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

func main() {

	pid := os.Getpid()
	fmt.Printf("Process PID: %d \n\n", pid)

	prc := exec.Command("ps", "-p", strconv.Itoa(pid), "-v")
	out, err := prc.Output()
	if err != nil {
		panic(err)
	}

	fmt.Println(string(out))

}

/*
./go_web 

Process PID: 4942

  PID STAT      TIME  SL  RE PAGEIN      VSZ    RSS   LIM     TSIZ  %CPU %MEM COMMAND
 4942 S      0:00.01   0   0      0 558433672   1452     -        0   0.0  0.0 /private/var/folders/tw/g0l_2m8s7y5690qqjdsvrzd00000gn/T/___go_build_b_go

*/