Name: PS
Use permission: All users
How to use: ps [options] [--help]
Description: Show the dynamics of the moment
parameter:
There are a lot of PS parameters, and only several common parameters are listed here and
-A lists all itinerary
-W Display widened can display more information
-au shows more detailed information
-AUX shows all strokes that contain other users
Au (x) output format:
User PID% CPU% MEM VSZ RSS TTY Stat Start Time Command
User: Tour owner
PID: PID
% CPU: Used CPU usage
% MEM: Occupation Memory Use
VSZ: The size of the virtual memory occupied
RSS: The size of the memory
TTY: The secondary device number of the terminal (Minor Device Number Of TTY)
Stat: The status of this trip:
D: I / O action in uninterrupted still (通 □ □ 缜 B)
R: is being executed
S: Static state
T: Pause
Z: No existence but temporarily unable to eliminate
W: There is not enough memory paging to allocate
<: High priority stroke
N: low priority stroke
L: There is a memory paging assignment and lock in memory (instant system or A I / O)
START: Time of the trip
Time: Time to do
Command: Directive executed
example:
PS
PID TTY TIME CMD
2791 TTYP0 00:00:00 TCSH
3092 TTYP0 00:00:00 PS
% PS -A
PID TTY TIME CMD
1? 00:00:03 init
2? 00:00:00 Kflushd
3? 00:00:00 Kpiod
4? 00:00:00 Kswapd
5? 00:00:00 MDRECoveryd
.......
% PS -AUX
User PID% CPU% MEM VSZ RSS TTY Stat Start Time Command
Root 1 0.0 0.7 1096 472? S Sep10 0:03 init [3]
Root 2 0.0 0.0 0 0? SW SEP10 0:00 [KFLUSHD]
Root 3 0.0 0.0 0 0? SW SEP10 0:00 [KPIOD]
Root 4 0.0 0.0 0 0? SW SEP10 0:00 [KSWAPD]
........
