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ps命令用于显示当前进程的状态,类似于 windows 的任务管理器。
显示所有包含其他使用者的进程
USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND
参数解释
实例
[root@localhost ~]# ps -aux
USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND
root 1 0.0 0.1 191412 4400 ? Ss 19:03 0:02 /usr/lib/systemd/systemd --switched-root --system --deserialize 22
root 2 0.0 0.0 0 0 ? S 19:03 0:00 [kthreadd]
root 4 0.0 0.0 0 0 ? S< 19:03 0:00 [kworker/0:0H]
root 6 0.0 0.0 0 0 ? S 19:03 0:00 [ksoftirqd/0]
root 7 0.0 0.0 0 0 ? S 19:03 0:00 [migration/0]
root 8 0.0 0.0 0 0 ? S 19:03 0:00 [rcu_bh]
root 9 0.0 0.0 0 0 ? S 19:03 0:00 [rcu_sched]
root 10 0.0 0.0 0 0 ? S< 19:03 0:00 [lru-add-drain]
[root@localhost ~]# ps -aux | grep tail
tom 3869 0.0 0.0 108304 680 pts/2 S+ 20:10 0:00 tail
root 3872 0.0 0.0 112824 980 pts/1 R+ 20:10 0:00 grep --color=auto tail
列出全部进程的全部信息
UID PID PPID C STIME TTY TIME CMD
参数解释
实例
[root@localhost ~]# ps -ef
UID PID PPID C STIME TTY TIME CMD
root 1 0 0 19:03 ? 00:00:02 /usr/lib/systemd/systemd --switched-root --system --deserialize 22
root 2 0 0 19:03 ? 00:00:00 [kthreadd]
root 4 2 0 19:03 ? 00:00:00 [kworker/0:0H]
root 6 2 0 19:03 ? 00:00:00 [ksoftirqd/0]
root 7 2 0 19:03 ? 00:00:00 [migration/0]
root 8 2 0 19:03 ? 00:00:00 [rcu_bh]
root 9 2 0 19:03 ? 00:00:00 [rcu_sched]
root 10 2 0 19:03 ? 00:00:00 [lru-add-drain]
[root@localhost ~]# ps -ef | grep tail
tom 3955 3827 0 20:18 pts/2 00:00:00 tail
root 4010 3960 0 20:19 pts/3 00:00:00 tail
root 4042 3065 0 20:21 pts/1 00:00:00 grep --color=auto tail
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