如何找出哪个Node.js pid在哪个端口上运行 [英] How to find out which Node.js pid is running on which port

问题描述

我想重新启动我在服务器上运行的许多Node.js进程之一.如果运行ps ax | grep node，我会得到所有Node进程的列表，但不会告诉我它们在哪个端口上.如何杀死运行在端口3000上的那个(例如).什么是管理多个Node进程的好方法?

I'd like to restart one of many Node.js processes I have running on my server. If I run ps ax | grep node I get a list of all my Node proccesses but it doesn't tell me which port they're on. How do I kill the one running on port 3000 (for instance). What is a good way to manage multiple Node processes?

推荐答案

如果您运行:

$ netstat -anp 2> /dev/null | grep :3000

您应该看到类似这样的内容:

You should see something like:

tcp        0      0 0.0.0.0:3000            0.0.0.0:*               LISTEN      5902/node

在这种情况下，5902是pid.您可以使用类似的方法将其杀死:

In this case the 5902 is the pid. You can use something like this to kill it:

netstat -anp 2> /dev/null | grep :3000 | awk '{ print $7 }' | cut -d'/' -f1 | xargs kill

这里是使用egrep的替代版本，可能会更好一些，因为它专门搜索字符串'node':

Here is an alternative version using egrep which may be a little better because it searches specifically for the string 'node':

netstat -anp 2> /dev/null | grep :3000 | egrep -o "[0-9]+/node" | cut -d'/' -f1 | xargs kill

您可以将以上内容转换为脚本，或将以下内容放入您的~/.bashrc:

You can turn the above into a script or place the following in your ~/.bashrc:

function smackdown () {
  netstat -anp 2> /dev/null |
  grep :$@ |
  egrep -o "[0-9]+/node" |
  cut -d'/' -f1 |
  xargs kill;
}

现在您可以运行:

$ smackdown 3000

这篇关于如何找出哪个Node.js pid在哪个端口上运行的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！