一：cpu
[root@srv /]# more /proc/cpuinfo | grep model name
model name : Intel(R) Xeon(R) CPU X3220 @ 2.40GHz
model name : Intel(R) Xeon(R) CPU X3220 @ 2.40GHz
model name : Intel(R) Xeon(R) CPU X3220 @ 2.40GHz
model name : Intel(R) Xeon(R) CPU X3220 @ 2.40GHz
[root@srv /]# grep model name /proc/cpuinfo
model name : Intel(R) Xeon(R) CPU X3220 @ 2.40GHz
model name : Intel(R) Xeon(R) CPU X3220 @ 2.40GHz
model name : Intel(R) Xeon(R) CPU X3220 @ 2.40GHz
model name : Intel(R) Xeon(R) CPU X3220 @ 2.40GHz
[root@srv /]# grep model name /proc/cpuinfo | cut -f2 -d:
Intel(R) Xeon(R) CPU X3220 @ 2.40GHz
Intel(R) Xeon(R) CPU X3220 @ 2.40GHz
Intel(R) Xeon(R) CPU X3220 @ 2.40GHz
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 $$2}
600
三：查看CPU位数(32 or 64)
[root@srv /]# getconf LONG_BIT
32
四：查看linux版本
[root@srv /]# more /etc/redhat-release
CentOS release 5 (Final)
[root@srv /]# more /etc/issue
CentOS release 5 (Final)
Kernel \r on an \m
[root@srv /]# more /proc/version
Linux version 2.6.18-92.1.18.el5.028stab060.2PAE (root@rhel5-32-build-xemul) (gc
c version 4.1.2 20071124 (Red Hat 4.1.2-42)) #1 SMP Tue Jan 13 12:31:30 MSK 2009
五：查看内核版本
[root@srv /]# uname -r
2.6.18-92.1.18.el5.028stab060.2PAE
[root@srv /]# uname -a
Linux srv.eddiechen.cn 2.6.18-92.1.18.el5.028stab060.2PAE #1 SMP Tue Jan 13 12:31:30 MSK 2009 i686 i686 i386 GNU/Linux
六：查看时区
[root@srv /]# date -R
Wed, 25 Feb 2009 02:20:50 +0000
[root@srv /]# mv /etc/localtime /etc/localtime.save
[root@srv /]# cp /usr/share/zoneinfo/Asia/Shanghai /etc/localtime
[root@srv /]# date -R
Wed, 25 Feb 2009 10:24:26 +0800
七：主机名
[root@srv /]# hostname
srv.eddiechen.cn
八：查看selinux情况
[root@srv /]# sestatus
SELinux status: disabled
九：网络
IP
[root@srv /]# ifconfig | grep inet addr: | grep -v 127.0.0.1 | cut -d: -f2 | awk { print $$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
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
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
