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Linux常用命令-55：ps
source link: https://xugaoxiang.com/2022/06/15/linux%e5%b8%b8%e7%94%a8%e5%91%bd%e4%bb%a4-55%ef%bc%9aps/
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ps 命令用于显示当前系统的进程状态。它是最基本的同时也是非常强大的进程查看命令，使用它可以确定哪些进程正在运行和运行的状态、进程是否结束、进程有没有僵死、哪些进程占用了过多的资源等。
语法格式：ps [参数]
常用参数：
# 列出所有进程
ps -aux
# 过滤nginx进程
ps ax | grep nginxRecommend
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