linux "ps" command example

"ps" command example

: If i use "ps" command, I can check working process.

$ ps [-option]

-a : enumerates all processes (total user)

-u : each process of user and usage time

-x: enumerates all processes without a controlling terminal

-l : enumerates the detailed information

-e: Display all processes statuses

Example)
 ps -aux

PID : process id

%CPU : cpu usage

%MEM : memory usage
VSZ : virtual memory usage

RSS : real memory usage

Stat : process status ( S : sleep, I : idle, T : stop, …)