centos 查看OS版本

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1)[root@localhost ~]# cat /proc/version

Linux version 2.6.18-194.el5 (mockbuild@builder10.centos.org) (gcc version 4.1.2 20080704 (Red Hat4.1.2-48)) #1 SMP Fri Apr 2 14:58:14 EDT 2010

2)

[root@localhost ~]# uname -a

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)

[root@localhost ~]# uname -r

2.6.18-194.el5

2. 查看linux版本:

1) 列出所有版本信息,

[root@localhost ~]# lsb_release -a

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

Distributor ID: CentOS

Description: CentOS release 5.5 (Final)

Release: 5.5

Codename: Final

注:这个命令适用于所有的linux,包括RedHatSUSE、Debian等发行版。

2) 执行cat /etc/issue,例如如下:

[root@localhost ~]# cat /etc/issue

CentOS release 5.5 (Final)

Kernel r on an m

3) 执行cat /etc/redhat-release,252);">[root@localhost ~]# cat /etc/redhat-release

查看系统是64位还是32位:

1、getconf LONG_BIT or getconf WORD_BIT

[root@localhost ~]# getconf LONG_BIT

64

2、file /bin/ls

[root@localhost ~]# file /bin/ls

/bin/ls: ELF 64-bit LSB executable,AMD x86-64,version 1 (SYSV),for GNU/Linux 2.6.9,dynamically linked (uses shared libs),stripped

3、lsb_release -a

4、或者是使用查看文件方法

vim /ect/issue

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