查看Linux系统内核版本命令

分类栏目：服务器

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使用系统前，大家应该会先了解一下这个系统的Linux内核和系统版本，这样可以更有针对性的操作。

一。查看内核版本命令：

1） [root@postcha.com ~]# cat /proc/version
Linux version 2.6.18-238.el5 (Linux version 2.6.32-431.el6.i686 (mockbuild@c6b8.bsys.dev.centos.org) (gcc version 4.4.7 20120313 (Red Hat 4.4.7-4) (GCC) ) #1 SMP Fri Nov 22 00:26:36 UTC 2013

[root@postcha.com ~]#

2）[root@postcha.com ~]# uname -r
2.6.18-238.el52.6.32-431.el6.i686

3）[root@postcha.com ~]# uname -a
Linux localhost.localdomain 2.6.32-431.el6.i686 #1 SMP Fri Nov 22 00:26:36 UTC 2013 i686 i686 i386 GNU/Linux
[root@postcha.com ~]#

二。查看linux版本：

1) 登录到服务器执行 lsb_release -a ,即可列出所有版本信息,例如:

[root@postcha.com ~]# lsb_release -a
LSB Version:    :core-4.0-amd64:core-4.0-ia32:core-4.0-noarch:graphics-4.0-amd64:graphics-4.0-ia32:graphics-4.0-noarch:printing-4.0-amd64:printing-4.0-ia32:printing-4.0-noarch
Distributor ID: RedHatEnterpriseAS
Description:    Red Hat Enterprise Linux AS release 4 (Nahant Update 4)
Release:        4
Codename:       NahantUpdate4
[root@postcha.com ~]#

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

2) 登录到linux执行cat /etc/issue,例如如下:

[root@postcha.com ~]# cat /etc/issue
CentOS release 6.5 (Final)
Kernel \r on an \m

[root@postcha.com ~]#

3) 登录到linux执行cat /etc/redhat-release ,例如如下:

[root@postcha.com ~]# cat /etc/redhat-release
CentOS release 6.5 (Final)
[root@postcha.com ~]#

4)登录到linux执行rpm -q redhat-release ,例如如下:

[root@postcha.com ~]# rpm -q redhat-release
redhat-release-5Server-5.6.0.3
[root@postcha.com ~]#

注:这种方式下可看到一个所谓的release号，比如上边的例子是5

这个release号和实际的版本之间存在一定的对应关系，如下：

redhat-release-3AS-1 -> Redhat Enterprise Linux AS 3

redhat-release-3AS-7.4 -> Redhat Enterprise Linux AS 3 Update 4

redhat-release-4AS-2 -> Redhat Enterprise Linux AS 4

redhat-release-4AS-2.4 -> Redhat Enterprise Linux AS 4 Update 1

redhat-release-4AS-3 -> Redhat Enterprise Linux AS 4 Update 2

redhat-release-4AS-4.1 -> Redhat Enterprise Linux AS 4 Update 3

redhat-release-4AS-5.5 -> Redhat Enterprise Linux AS 4 Update 4

另:第3)、4)两种方法只对Redhat Linux有效

5) [root@postcha.com ~]# file /bin/bash
/bin/bash: 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
[root@postcha.com ~]#

6) [root@postcha.com ~]# file /bin/cat
/bin/cat: 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
[root@postcha.com ~]#