Common Linux Operations one.

Linux is a common operation that must be understood.

1, LS and ll list the directory of files.

2, Tail-f XXX view files.

3, Chmod-r 777 Xxx.jar grant permission

4, Cat view file-n number of rows. Cat-n A.log

5, PS show the dynamic of the instantaneous stroke-a shows all the itinerary,-aux Show all the other users of the itinerary below is a

Description: au (x) output format:
　　
USER PID%cpu%MEM VSZ RSS TTY STAT START time COMMAND

USER PID%cpu%MEM VSZ RSS TTY STAT START time COMMAND
User: Owner of the itinerary
Pid:pid
%CPU: CPU Usage consumed
%MEM: Usage of memory consumed
VSZ: Virtual Memory size occupied
RSS: Size of memory consumed
TTY: Secondary device number for the terminal (minor device numbers of TTY)
STAT: The status of the trip:
D: Non-interruptible static (through throb-AV b for I/O action)
R: Executing in progress
S: Stationary state
T: Pause execution
Z: Not present but cannot be eliminated temporarily
W: Not enough memory paging to allocate
<: High-priority stroke
N: Low-priority stroke
L: Memory paging is allocated and locked in memory (real-time system or I/O)
Start: Trip start time
Time: When it was executed
Command: the command executed

Aux is important, remember.

Common Linux Operations one.