CentOS查看CPU,内存，位数行等信息命令

一：cpu

[root@srv /]# more /proc/cpuinfo | grep “model name”

model name      : intel(r) xeon(r) cpu           x3220 @ 2.40ghz

[root@srv /]# grep “model name” /proc/cpuinfo

[root@srv /]# grep “model name” /proc/cpuinfo | cut -f2 -d:

intel(r) xeon(r) cpu           x3220 @ 2.40ghz

二：内存

[root@srv /]# grep memtotal /proc/meminfo

memtotal:       614400 kb

[root@srv /]# free -m

                   total       used       free     shared   buffers     cached

mem:           600         23        576          0          0          0

-/+ buffers/cache:         23        576

swap:            0          0          0

[root@srv /]# free -m |grep “mem” | awk ‘{print $2}’

600

三：查看cpu位数(32 or 64)

[root@srv /]# getconf long_bit

32

四：查看linux版本

[root@srv /]# more /etc/redhat-release

centos release 5 (final)

[root@srv /]# more /etc/issue

kernel \r on an \m

[root@srv /]# more /proc/version

linux version 2.6.18-92.1.18.el5.028stab060.2pae (root@rhel5-32-build-xemul) (gc

c version 4.1.2 20071124 (red hat 4.1.2-42)) #1 smp tue jan 13 12:31:30 msk 2009

五：查看内核版本

[root@srv /]# uname -r

2.6.18-92.1.18.el5.028stab060.2pae

[root@srv /]# uname -a

linux srv.eddiechen.cn 2.6.18-92.1.18.el5.028stab060.2pae #1 smp tue jan 13 12:31:30 msk 2009 i686 i686 i386 gnu/linux

六：查看时区

[root@srv /]# date -r

wed, 25 feb 2009 02:20:50 +0000

[root@srv /]# mv /etc/localtime /etc/localtime.save

[root@srv /]# cp /usr/share/zoneinfo/asia/shanghai /etc/localtime

wed, 25 feb 2009 10:24:26 +0800

七：主机名

[root@srv /]# hostname

srv.eddiechen.cn

八：查看selinux情况

[root@srv /]# sestatus

selinux status:                 disabled

九：网络

ip

[root@srv /]# ifconfig   | grep ‘inet addr:’| grep -v ’127.0.0.1′ | cut -d: -f2 | awk ‘{ print $1}’

207.154.202.216

网关

[root@srv /]# cat /etc/sysconfig/network

networking=”yes”

gateway=”192.0.2.1′

hostname=”srv.eddiechen.cn”

dns

[root@srv /]# cat /etc/resolv.conf

nameserver 208.74.168.131

nameserver 208.74.168.132

nameserver 4.2.2.1

十：已经安装的软件包

[root@srv /]# rpm -qa | wc -l

197

[root@srv /]# yum list installed | wc -l

198

十一：磁盘和分区

[root@srv /]# df -h

filesystem            size      used            avail use     %     mounted on

/dev/simfs             10g    353m             9.7g        4%     /

[root@srv /]# du -sh

353m

[root@srv /]# du /etc -sh

4.6m    /etc

十二：系统启动的服务

[root@srv ~]# chkconfig –list | grep 3:on | cut -f1

crond         

httpd         

iptables      

mcstrans      

messagebus    

network       

restorecond   

sendmail      

sshd          

syslog        

xinetd        

十三：系统默认字符集

[root@srv sysconfig]# locale

lang=

lc_ctype=”posix”

lc_numeric=”posix”

lc_time=”posix”

lc_collate=”posix”

lc_monetary=”posix”

lc_messages=”posix”

lc_paper=”posix”

lc_name=”posix”

lc_address=”posix”

lc_telephone=”posix”

lc_measurement=”posix”

lc_identification=”posix”

lc_all=

十四：列出变量

[root@srv ~]# set

bash=/bin/bash

bash_argc=()

bash_argv=()

bash_lineno=()

bash_source=()

bash_versinfo=([0]=”3′ [1]=”1′ [2]=”17′

[3]=”1′ [4]=”release” [5]=”i686-redhat-linux-gnu”)

bash_version=’3.1.17(1)-release’

colors=/etc/dir_colors

columns=80

dirstack=()

euid=0

groups=()

g_broken_filenames=1

histfile=/root/.bash_history

histfilesize=1000

histsize=1000

home=/root

hostname=srv.eddiechen.cn

hosttype=i686

ifs=$’ \t\n’

inputrc=/etc/inputrc

lessopen=’|/usr/bin/lesspipe.sh %s’

lines=24

logname=root

ls_colors=’no=00:fi=00:di=01;34:ln=01;36:pi=40;33:so=01;35:bd=40;33;01:cd=40;33;01:or=01;05;37;41:mi=01;05;37;41:ex=01;32:*.cmd=01;32:*.exe=01;32:*.com=01;32:*.btm=01;32:*.bat=01;32:*.sh=01;32:*.csh=01;32:*.tar=01;31:*.tgz=01;31:*.arj=01;31:*.taz=01;31:*.lzh=01;31:*.zip=01;31:*.z=01;31:*.z=01;31:*.gz=01;31:*.bz2=01;31:*.bz=01;31:*.tz=01;31:*.rpm=01;31:*.cpio=01;31:*.jpg=01;35:*.gif=01;35:*.bmp=01;35:*.xbm=01;35:*.xpm=01;35:*.png=01;35:*.tif=01;35:’

machtype=i686-redhat-linux-gnu

mail=/var/spool/mail/root

mailcheck=60

opterr=1

optind=1

ostype=linux-gnu

path=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin

pipestatus=([0]=”0′)

ppid=3695

ps1=’[\u@\h \w]\$ ‘

ps2=’> ‘

ps4=’+ ‘

pwd=/root

shell=/bin/bash

shellopts=braceexpand:emacs:hashall:histexpand:history:interactive-comments:monitor

shlvl=1

ssh_auth_sock=/tmp/ssh-sfvoij3695/agent.3695

ssh_client=’123.123.36.61 1263 22′

ssh_connection=’123.123.36.61 1263 207.154.202.216 22′

ssh_tty=/dev/pts/0

term=linux

uid=0

user=root

_=username

[root@srv ~]# env

ssh_client=123.123.36.61 1263 22

ls_colors=no=00:fi=00:di=01;34:ln=01;36:pi=40;33:so=01;35:bd=40;33;01:cd=40;33;01:or=01;05;37;41:mi=01;05;37;41:ex=01;32:*.cmd=01;32:*.exe=01;32:*.com=01;32:*.btm=01;32:*.bat=01;32:*.sh=01;32:*.csh=01;32:*.tar=01;31:*.tgz=01;31:*.arj=01;31:*.taz=01;31:*.lzh=01;31:*.zip=01;31:*.z=01;31:*.z=01;31:*.gz=01;31:*.bz2=01;31:*.bz=01;31:*.tz=01;31:*.rpm=01;31:*.cpio=01;31:*.jpg=01;35:*.gif=01;35:*.bmp=01;35:*.xbm=01;35:*.xpm=01;35:*.png=01;35:*.tif=01;35:

ssh_connection=123.123.36.61 1263 207.154.202.216 22

lessopen=|/usr/bin/lesspipe.sh %s

_=/bin/env

[root@srv ~]# echo $path

/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin

[root@srv ~]# alias

alias cp=’cp -i’

alias l.=’ls -d .* –color=tty’

alias ll=’ls -l –color=tty’

alias ls=’ls –color=tty’

alias mv=’mv -i’

alias rm=’rm -i’