Linux Basic command practice this guy's so strong. Turn __linux

Source: Internet
Author: User
Tags clear screen memory usage disk usage

----------------Find a File method----------------------

Find. -name "Project_supply_sign.xsl"

----------------FTP Method---------------------------

[Root@ecapp1 shx3]# CD Common

[Root@ecapp1 common]# CD JS

[Root@ecapp1 js]# FTP 172.0.2.21

Connected to 172.0.2.21.

2.0.1 (VSFTPD)

530 Please login with the USER and pass.

530 Please login with the USER and pass.

Kerberos_v4 rejected as an authentication type

Name (172.0.2.21:root): App1

331 Please specify the password.

Password:

230 Login successful.

Remote system type is UNIX.

Using binary mode to transfer files.

Ftp> CD SONGYC

Directory successfully changed.

Ftp> Get Util.js

Local:util.js Remote:util.js

Entering passive Mode (172,0,2,21,226,163)

Opening BINARY mode data connection for Util.js (30380 bytes).

The File send OK.

30380 bytes received in 0.0051 seconds (5.9e+03 kbytes/s)

Ftp> quit

##################### the war package with jar command ##############################################

Copy:

[Root@emed4test song_temp]# CP. /shx3.war./

Extract:

[Root@emed4test song_temp]# jar-xvf./shx3.war Extract to current directory

To delete a war:

[Root@emed4test song_temp]# rm-f./shx3.war

Compression:

[Root@emed4test song_temp]# JAR-CVF. /shx3.war.

If you are in a compressed directory, execute the above command.

If you are in the previous level directory:

JAR-CVF Shx3.war./Compressed Directory

[root@emed4test root]# Clear Screen ctrl+l

*************************************************************************

[Root@emed4test root]# finger root displays user information

Login:root Name:root

Directory:/root Shell:/bin/bash

On since Thu Feb 9 10:29 (CST) in PTS/3 from 172.25.60.118

On since Thu Feb 9 09:57 (CST) in pts/0 from 172.25.50.96

1 Hour 2 minutes idle

Mail last Read Thu Dec 06:03 (CST)

No plan.

***************************************************************************

[Root@emed4test root]# whoami Display current user

Root

[Root@emed4test root]# who am I show current user with date

Root PTS/3 Feb 9 10:29 (172.25.60.118)

***************************************************************************

[Root@emed4test root]# Date Display system time

Thu Feb 9 11:04:41 CST 2006

***************************************************************************

[Root@emed4test root]# Last display previous user login information

Root PTS/3 172.25.60.118 Thu Feb 9 10:29 still in

Root pts/0 172.25.50.96 Thu Feb 9 09:57 still in

Root pts/0 172.25.83.246 Thu Feb 9 09:05-09:21 (00:16)

Duanxw pts/1 172.25.60.118 Tue Feb 7 09:04-09:14 (00:10)

***************************************************************************

[Root@emed4test root]# History|more shows all previous commands, one stop per screen

Kill-9 28251

Ps-ef|grep Java

mkdir logs

Nohup./startweblogic.sh &

Tail-f Nohup.out

Ps-ef|grep Java

Kill-9 28388

RM-RF Nohup.out

Nohup/startweblogic.sh &

cd/opt/httpd2fordata/bin/

/apachectl start

/apachectl stop

***************************************************************************

[Root@emed4test root]# uptime shows the time since the last reboot

11:09:24 up, 21:16, 2 users, load average:0.02, 0.05, 0.01

***************************************************************************

[Root@emed4test root]# PS Displays the process that the current user is executing

PID TTY Time CMD

30419 PTS/3 00:00:00 Bash

30457 PTS/3 00:00:00 Mans

***************************************************************************

[Root@emed4test root]# PS Axu | More display controllable and not controlled all processes, one stop per screen

USER PID%cpu%mem VSZ RSS TTY STAT START time COMMAND

Root 1 0.0 0.0 1364 72? S Jan20 0:18 Init

Nobody 22702 0.0 0.0 4888 376? S Feb07 0:00 [httpd]

Root 29101 0.0 0.0 4164 4? S Feb08 0:00/bin/sh./startweblogic.sh

Root 29120 0.2 8.0 810720 82504? S Feb08 3:13/opt/j2sdk1.4.2_08/bin/java-client-xms32m-

Xmx200m-xx:maxpermsize=128m-xverify:none-dweblogic.name=myserver-dweblogic.productionmodeenabled=-Djava

. Security.policy=/opt/bea/weblogic81/server/lib/weblogic.policy WebLogic. Server

Root 29280 0.0 0.0 4164 172? S Feb08 0:00/bin/sh/opt/bea/projects/shx3/startweblogic.

Sh

***************************************************************************

[Root@emed4test root]# Top------Continuously displays the resource usage of each process system-----

11:16:21 up, 21:22, 2 users, load average:0.23, 0.22, 0.09

Processes:66 sleeping, 1 running, 0 zombie, stopped

CPU0 states:4.0% User 0.1% system 0.0% Nice 0.0% iowait 95.3% idle

CPU1 states:0.0% User 0.0% system 0.0% Nice 0.0% iowait 100.0% idle

mem:1030284k av, 1008176k used, 22108k free, 0k shrd, 119136k Buff

767660k ACTV, 0k in_d, 20896k In_c

swap:2040244k av, 187196k used, 1853048k free 325008k Cached

PID USER PRI NI SIZE RSS SHARE STAT%cpu%mem time CPU COMMAND

29300 Root 0 409M 403M 31032 S 3.9 40.0 14:04 0 Java

30543 Root 0 1184 1184 856 R 0.3 0.1 0:00 0 Top

1 root 0 0.0 S 0.0 0:18 1 init

***************************************************************************

[Root@emed4test root]# free----------shows memory usage--------------

Total used free shared buffers Cached

mem:1030284 1008448 21836 0 119152 325104

-/+ buffers/cache:564192 466092

swap:2040244 187232 1853012

Or you can use Cat/proc/meminfo to view the details of memory usage

***************************************************************************

[Root@emed4test root]# df-h Displays all file system hard drive usage

FileSystem Size Used Avail use% mounted on

/dev/sda2 15G 12G 2.2G 85%/

/DEV/SDA1 99M 15M 79M 16%/boot

None 504M 0 504M 0%/dev/shm

***************************************************************************

[Root@emed4test root]# du/-bh|more shows the hard disk usage of files in each process

8.0k/lost+found/#508086/_appsdir_shx3_war/shx3.war/meta-inf

8.0k/lost+found/#508086/_appsdir_shx3_war/shx3.war/web-inf/classes/net/emedchina/address/db/map

48k/lost+found/#508086/_appsdir_shx3_war/shx3.war/web-inf/classes/net/emedchina/address/db

***************************************************************************

[Root@emed4test root]# cat/proc/cpuinfo-------Display detailed parameters for each processor in the server----------

processor:0

Vendor_id:genuineintel

CPU Family:6

Model:8

Model Name:pentium III (Coppermine)

Stepping:10

CPU mhz:999.552

Cache size:256 KB

Physical id:0

Siblings:1

Fdiv_bug:no

Hlt_bug:no

F00f_bug:no

Coma_bug:no

Fpu:yes

Fpu_exception:yes

CPUID Level:2

Wp:yes

FLAGS:FPU VME de PSE TSC MSR PAE MCE cx8 APIC Sep MTRR PGE MCA cmov Pat PSE36 MMX FXSR SSE

bogomips:1992.29

Processor:1

Vendor_id:genuineintel

CPU Family:6

Model:8

Model Name:pentium III (Coppermine)

Stepping:10

CPU mhz:999.552

Cache size:256 KB

Physical id:0

Siblings:1

Fdiv_bug:no

Hlt_bug:no

F00f_bug:no

Coma_bug:no

Fpu:yes

Fpu_exception:yes

CPUID Level:2

Wp:yes

FLAGS:FPU VME de PSE TSC MSR PAE MCE cx8 APIC Sep MTRR PGE MCA cmov Pat PSE36 MMX FXSR SSE

bogomips:1998.84

***************************************************************************

[Root@emed4test root]# cat/proc/interrupts displays all interrupts for the current server

CPU0 CPU1

0:90130655 82403120 Io-apic-edge Timer

1:5 7 Io-apic-edge keyboard

2:0 0 xt-pic Cascade

8: &nbs

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