查看Linux（CentOS）系统信息

摘要: Linux（CentOS）的系统信息查看方法

系统版本
[cstruggle@localhost ~]$ more /etc/redhat-release
CentOS release 6.6 (Final)
[cstruggle@localhost ~]$ more /etc/issue
CentOS release 6.6 (Final)
Kernel \r on an \m
[cstruggle@localhost ~]$ more /proc/version
Linux version 2.6.32-504.3.3.el6.x86_64 (mockbuild@c6b8.bsys.dev.centos.org) (gcc version 4.4.7 20120313 (Red Hat 4.4.7-11) (GCC) ) #1 SMP Wed Dec 17 01:55:02 UTC 2014

CPU信息
[cstruggle@localhost ~]$ more /proc/cpuinfo



[cstruggle@localhost ~]$ more /proc/cpuinfo | grep "model name"
model name : Intel(R) Core(TM) i5-4210M CPU @ 2.60GHz

Mem信息
[cstruggle@localhost ~]$ cat /proc/meminfo
[cstruggle@localhost ~]$ grep MemTotal /proc/meminfo
MemTotal: 1004888 kB
[cstruggle@localhost ~]$ free -m
total used free shared buffers cached
Mem: 981 533 447 3 28 191
-/+ buffers/cache: 314 667
Swap: 1983 0 1983
[cstruggle@localhost ~]$ free -m|grep "Mem" | awk '{print $2}'
981

内核版本
[cstruggle@localhost ~]$ uname -r
2.6.32-504.3.3.el6.x86_64
[cstruggle@localhost ~]$ uname -a
Linux localhost.localdomain 2.6.32-504.3.3.el6.x86_64 #1 SMP Wed Dec 17 01:55:02 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux

时区
[cstruggle@localhost ~]$ date
Wed Apr 8 22:24:34 EDT 2015
[cstruggle@localhost ~]$ date -R
Wed, 08 Apr 2015 22:24:38 -0400

主机名
[cstruggle@localhost ~]$ hostname
localhost.localdomain
可修改主机名
[cstruggle@localhost ~]$ cat /etc/sysconfig/network
NETWORKING=yes
HOSTNAME=localhost.localdomain

selinux
[cstruggle@localhost ~]$ sestatus
SELinux status: enabled
SELinuxfs mount: /selinux
Current mode: enforcing
Mode from config file: enforcing
Policy version: 24
Policy from config file: targeted
修改：
[cstruggle@localhost ~]$ cat /etc/selinux/config
SELINUX=enforcing
SELINUXTYPE=targeted

网络
IP:
[cstruggle@localhost ~]$ ifconfig
[cstruggle@localhost ~]$ ifconfig | grep 'inet addr:'| grep -v '127.0.0.1' | cut -d: -f2 | awk '{ print $1}'
192.168.150.129
网关：
[cstruggle@localhost ~]$ cat /etc/sysconfig/network
NETWORKING=yes
GATEWAY=
HOSTNAME=localhost.localdomain
DNS:
[cstruggle@localhost ~]$ cat /etc/resolv.conf
# Generated by NetworkManager
domain localdomain
search localdomain
nameserver 192.168.150.2
HOSTS:
[cstruggle@localhost ~]$ cat /etc/hosts
127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4
::1 localhost localhost.localdomain localhost6 localhost6.localdomain6

磁盘和分区
[cstruggle@localhost ~]$ df -h
Filesystem Size Used Avail Use% Mounted on
/dev/sda2 97G 15G 78G 16% /
tmpfs 491M 228K 491M 1% /dev/shm
/dev/sda1 283M 52M 217M 20% /boot
[cstruggle@localhost ~]$ du -sh
11G
[cstruggle@localhost ~]$ du MyWorkSpace -sh
9.0G MyWorkSpac

键盘布局
[cstruggle@localhost ~]$ cat /etc/sysconfig/keyboard
KEYTABLE="us"
MODEL="pc105+inet"
LAYOUT="us"
KEYBOARDTYPE="pc"
[cstruggle@localhost ~]$ cat /etc/sysconfig/keyboard | grep KEYTABLE | cut -f2 -d=
"us"

系统默认语言
[cstruggle@localhost ~]$ cat /etc/sysconfig/i18n
LANG="en_US.UTF-8"
SYSFONT="latarcyrheb-sun16"