Dbabc.Net

查看Linux的系统信息总结如下

一：cpu

dbabc.net</home/oracle>$more /proc/cpuinfo | grep “model name”
model name      : Intel(R) Xeon(R) CPU           E5345  @ 2.33GHz
model name      : Intel(R) Xeon(R) CPU           E5345  @ 2.33GHz
model name      : Intel(R) Xeon(R) CPU           E5345  @ 2.33GHz
model name      : Intel(R) Xeon(R) CPU           E5345  @ 2.33GHz
model name      : Intel(R) Xeon(R) CPU           E5345  @ 2.33GHz
model name      : Intel(R) Xeon(R) CPU           E5345  @ 2.33GHz
model name      : Intel(R) Xeon(R) CPU           E5345  @ 2.33GHz
model name      : Intel(R) Xeon(R) CPU           E5345  @ 2.33GHz

dbabc.net</home/oracle>$grep “model name” /proc/cpuinfo
model name      : Intel(R) Xeon(R) CPU           E5345  @ 2.33GHz
model name      : Intel(R) Xeon(R) CPU           E5345  @ 2.33GHz
model name      : Intel(R) Xeon(R) CPU           E5345  @ 2.33GHz
model name      : Intel(R) Xeon(R) CPU           E5345  @ 2.33GHz
model name      : Intel(R) Xeon(R) CPU           E5345  @ 2.33GHz
model name      : Intel(R) Xeon(R) CPU           E5345  @ 2.33GHz
model name      : Intel(R) Xeon(R) CPU           E5345  @ 2.33GHz
model name      : Intel(R) Xeon(R) CPU           E5345  @ 2.33GHz

dbabc.net</home/oracle>$grep “model name” /proc/cpuinfo | cut -f2 -d:
Intel(R) Xeon(R) CPU           E5345  @ 2.33GHz
Intel(R) Xeon(R) CPU           E5345  @ 2.33GHz
Intel(R) Xeon(R) CPU           E5345  @ 2.33GHz
Intel(R) Xeon(R) CPU           E5345  @ 2.33GHz
Intel(R) Xeon(R) CPU           E5345  @ 2.33GHz
Intel(R) Xeon(R) CPU           E5345  @ 2.33GHz
Intel(R) Xeon(R) CPU           E5345  @ 2.33GHz
Intel(R) Xeon(R) CPU           E5345  @ 2.33GHz

二：内存

dbabc.net</home/oracle>$grep MemTotal /proc/meminfo
MemTotal:      8166012 kB

dbabc.net</home/oracle>$free -m
total       used       free     shared    buffers     cached
Mem:          7974       7949         25          0         43       3694
-/+ buffers/cache:       4211       3763
Swap:         8189        250       7938

dbabc.net</home/oracle>$free -m |grep “Mem” | awk ‘{print $2}’
7974

三：查看CPU位数(32 or 64)

dbabc.net</home/oracle>$getconf LONG_BIT
64

四：查看linux版本

dbabc.net</home/oracle>$more /etc/redhat-release
Red Hat Enterprise Linux AS release 4 (Nahant Update 5)

dbabc.net</home/oracle>$more /etc/issue
Red Hat Enterprise Linux AS release 4 (Nahant Update 5)
Kernel r on an m

dbabc.net</home/oracle>$more /proc/version
Linux version 2.6.9-55.ELsmp (brewbuilder@hs20-bc2-4.build.redhat.com) (gcc version 3.4.6 20060404 (Red Hat 3.4.6-3)) #1 SMP
Fri Apr 20 16:36:54 EDT 2007

五：查看内核版本

dbabc.net</home/oracle>$uname -r
2.6.9-55.ELsmp

dbabc.net</home/oracle>$uname -a
Linux dbabc.net 2.6.9-55.ELsmp #1 SMP Fri Apr 20 16:36:54 EDT 2007 x86_64 x86_64 x86_64 GNU/Linux

六：查看时区

dbabc.net</home/oracle>$date -R
Fri, 15 May 2009 08:34:34 +0800

七：主机名

dbabc.net</home/oracle>$hostname
dbabc.net

八：查看selinux情况

dbabc.net</home/oracle>$sestatus
SELinux status:         disabled

九：网络

IP

dbabc.net</home/oracle>$ifconfig   | grep ‘inet addr:’| grep -v ’127.0.0.1′ | cut -d: -f2 | awk ‘{ print $1}’
172.16.0.100

网关

dbabc.net</home/oracle>$cat /etc/sysconfig/network
NETWORKING=yes
HOSTNAME=dbabc.net
GATEWAY=172.16.0.1

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

dbabc.net</home/oracle>$rpm -qa | wc -l
1755

十一：磁盘和分区

dbabc.net</home/oracle>$df -h
Filesystem            Size  Used Avail Use% Mounted on
/dev/sda7             2.0G  695M  1.2G  37% /
/dev/sda1             494M   18M  451M   4% /boot
/dev/sdb1             824G  456G  326G  59% /data
none                  3.9G     0  3.9G   0% /dev/shm
/dev/sda5             5.0G   44M  4.7G   1% /home
/dev/sda6             2.0G  133M  1.8G   7% /tmp
/dev/sda8             102G  6.1G   91G   7% /u01
/dev/sda2              16G  6.9G  7.8G  48% /usr
[root@srv /]# du -sh
353M

[root@srv /]# du /etc -sh
4.6M    /etc

十二：系统启动的服务

dbabc.net</home/oracle>$ 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

dbabc.net</home/oracle>$locale
LANG=en_US.UTF-8
LC_CTYPE=”en_US.UTF-8″
LC_NUMERIC=”en_US.UTF-8″
LC_TIME=”en_US.UTF-8″
LC_COLLATE=”en_US.UTF-8″
LC_MONETARY=”en_US.UTF-8″
LC_MESSAGES=”en_US.UTF-8″
LC_PAPER=”en_US.UTF-8″
LC_NAME=”en_US.UTF-8″
LC_ADDRESS=”en_US.UTF-8″
LC_TELEPHONE=”en_US.UTF-8″
LC_MEASUREMENT=”en_US.UTF-8″
LC_IDENTIFICATION=”en_US.UTF-8″
LC_ALL=

十四：列出变量

dbabc.net</home/oracle>$ set
dbabc.net</home/oracle>$ env
dbabc.net</home/oracle>$ echo $PATH
dbabc.net</home/oracle>$ 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’