测试机器的硬件信息:

查看CPU信息(型号)

  1. # cat /proc/cpuinfo | grep name | cut -f2 -d: | uniq -c
  2. 8 Intel(R) Xeon(R) CPU E5410 @ 2.33GHz

(看到有8个逻辑CPU, 也知道了CPU型号)

  1. # cat /proc/cpuinfo | grep physical | uniq -c
  2. 4 physical id : 0
  3. 4 physical id : 1

(说明实际上是两颗4核的CPU)

  1. # getconf LONG_BIT
  2. 64

(说明当前CPU运行在32bit模式下, 但不代表CPU不支持64bit)

  1. # cat /proc/cpuinfo | grep flags | grep ' lm ' | wc -l
  2. 8

(结果大于0, 说明支持64bit计算. lm指long mode, 支持lm则是64bit)

再完整看cpu详细信息, 不过大部分我们都不关心而已.

  1. # dmidecode | grep 'Processor Information'

查看内 存信息

  1. # cat /proc/meminfo
  2. # uname -a
  3. Linux euis1 2.6.9-55.ELsmp #1 SMP Fri Apr 20 17:03:35 EDT 2007 i686
  4. i686 i386 GNU/Linux

(查看当前操作系统内核信息)

  1. # cat /etc/issue | grep Linux
  2. Red Hat Enterprise Linux AS release 4 (Nahant Update 5)

(查看当前操作系统发行版信息)

查看机器型号

  1. # dmidecode | grep "Product Name"

查看网卡信息

  1. # dmesg | grep -i eth

查看操作系统版本

  1. #lsb_release -a

有以下命令可以查看:

  1. # lsb_release -a
  2. LSB Version: :core-3.1-ia32:core-3.1-noarch:graphics-3.1-ia32:graphics-3.1-noarch
  3. Distributor ID: CentOS
  4. Description: CentOS release 5.4 (Final)
  5. Release: 5.4
  6. Codename: Final

这个命令适用于所有的linux,包括Redhat、SuSE、Debian、Centos等发行版。

  1. root@MyMail ~ # uname
  2. Linux
  3. root@MyMail ~ # uname -r
  4. 2.6.18-164.el5
  5. [root@localhost ~]# uname -a
  6. Linux localhost.localdomain 2.6.18-194.el5 #1 SMP Fri Apr 2 14:58:35 EDT 2010 i686 i686 i386 GNU/Linux

以下二种方法适用于RedHat,CentOS

  1. root@MyMail ~ # cat /etc/redhat-release
  2. CentOS release 5.4 (Final)

登录到linux执行rpm -q redhat-release

  1. #rpm -q redhat-release

或CentOS

  1. root@MyMail ~ # rpm -q centos-release
  2. centos-release-5-4.el5.centos.1

当前centos 版本与redhat对应的版本的命令

  1. # cat /proc/version
  2. Linux version 2.6.9-78.ELsmp (mockbuild@builder16.centos.org) (gcc version 3.4.6 20060404 (Red Hat 3.4.6-10)) #1 SMP Fri Jul 25 00:04:28 EDT 2008

方法:
1)

  1. root@localhost ~]# cat /proc/version
  2. Linux version 2.6.18-194.el5 mockbuild@builder10.centos.org gcc version 4.1.2 20080704 Red Hat 4.1.2-48)) #1 SMP Fri Apr 2 14:58:14 EDT 2010

2)

  1. root@localhost ~]# uname -a
  2. Linux localhost.localdomain 2.6.18-194.el5 #1 SMP Fri Apr 2 14:58:14 EDT 2010 x86_64 x86_64 x86_64 GNU/Linux

3)

  1. root@localhost ~]# uname -r
  2. 2.6.18-194.el5

  2. 查看linux版本:
  1) 列出所有版本信息

  1. root@localhost ~]# lsb_release -a
  2. LSB Version core-3.1-amd64:core-3.1-ia32:core-3.1-noarch:graphics-3.1-amd64:graphics-3.1-ia32:graphics-3.1-noarch
  3. Distributor ID CentOS
  4. Description CentOS release 5.5 Final
  5. Release 5.5
  6. Codename Final

  注:这个命令适用于所有的linux,包括RedHat、SUSE、Debian等发行版。
  2) 执行cat /etc/issue,例如如下:

  1. root@localhost ~]# cat /etc/issue
  2. CentOS release 5.5 Final
  3. Kernel r on an m

  3) 执行cat /etc/redhat-release ,例如如下:

  1. root@localhost ~]# cat /etc/redhat-release
  2. CentOS release 5.5 Final

  查看系统是64位还是32位:
  1、getconf LONG_BIT or getconf WORD_BIT

  1. root@localhost ~]# getconf LONG_BIT
  2. 64

  2、file /bin/ls

  1. root@localhost ~]# file /bin/ls
  2. /bin/ls ELF 64-bit LSB executable AMD x86-64 version 1 SYSV), for GNU/Linux 2.6.9 dynamically linked uses shared libs), for GNU/Linux 2.6.9 stripped

  3、lsb_release -a

  1. root@localhost ~]# lsb_release -a
  2. LSB Version core-3.1-amd64:core-3.1-ia32:core-3.1-noarch:graphics-3.1-amd64:graphics-3.1-ia32:graphics-3.1-noarch
  3. Distributor ID CentOS
  4. Description CentOS release 5.5 Final
  5. Release 5.5
  6. Codename Final

  4、或者是使用查看文件的方法。

  1. vim /ect/issue

  上面就是查看CentOS版本信息的介绍了,除了能够知道你使用的是哪个版本外,还能够查看你所使用的CentOS系统是32位还是64位的。

来自于: http://blog.chinaunix.net/uid-24907956-id-3423976.html

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