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) cpuX3220 @ 2.40GHz
model name: Intel(R) Xeon(R) cpuX3220 @ 2.40GHz
model name: Intel(R) Xeon(R) cpuX3220 @ 2.40GHz
model name: Intel(R) Xeon(R) cpuX3220 @ 2.40GHz

[root@srv /]#grep “model name” /proc/cpuinfo
model name: Intel(R) Xeon(R) cpuX3220 @ 2.40GHz
model name: Intel(R) Xeon(R) cpuX3220 @ 2.40GHz
model name: Intel(R) Xeon(R) cpuX3220 @ 2.40GHz
model name: Intel(R) Xeon(R) cpuX3220 @ 2.40GHz

[root@srv /]#grep “model name” /proc/cpuinfo | cut -f2 -d:
Intel(R) Xeon(R) cpuX3220 @ 2.40GHz
Intel(R) Xeon(R) cpuX3220 @ 2.40GHz
Intel(R) Xeon(R) cpuX3220 @ 2.40GHz
Intel(R) Xeon(R) cpuX3220 @ 2.40GHz

二：内存

[root@srv /]#grep MemTotal /proc/meminfo
MemTotal:614400 kB

[root@srv /]#free -m
totalusedfreesharedbufferscached
Mem:60023576000
-/+ buffers/cache:23576
Swap:000

[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
CentOS release 5 (Final)
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
[root@srv /]#date -R
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
FilesystemSizeUsedAvail Use%Mounted on
/dev/simfs10G353M9.7G4%/

[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
HOSTNAME=srv.eddiechen.cn
TERM=linux
SHELL=/bin/bash
HISTSIZE=1000
SSH_CLIENT=123.123.36.61 1263 22
SSH_TTY=/dev/pts/0
USER=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:
SSH_AUTH_SOCK=/tmp/ssh-SfvoIj3695/agent.3695
MAIL=/var/spool/mail/root
PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin
INPUTRC=/etc/inputrc
PWD=/root
SHLVL=1
HOME=/root
LOGNAME=root
SSH_CONNECTION=123.123.36.61 1263 207.154.202.216 22
LESSOPEN=|/usr/bin/lesspipe.sh %s
G_broKEN_FILENAMES=1
_=/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’