Linux下查看版本号的命令

1，查看内核版本命令：

cat /proc/version

uname -a

uname -rcat /etc/issue

man uname

2，查看linux版本：抄录如下：

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@3.5.5Biz-46 ~]# lsb_release -a

LSB Version: 1.3

Distributor ID: RedHatEnterpriseAS

Descrīption: Red Hat Enterprise Linux AS release 4 (Nahant Update 1)

Release: 4

Codename: NahantUpdate1

[root@3.5.5Biz-46 ~]#

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/redhat-release ，例如如下：

[root@3.5.5Biz-46 ~]# cat /etc/redhat-release

Red Hat Enterprise Linux AS release 4 (Nahant Update 1)

[root@3.5.5Biz-46 ~]#

这种方式下可以直接看到具体的版本号，比如 AS4 Update 1

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

[root@3.5.5Biz-46 ~]# rpm -q redhat-release

redhat-release-4AS-2.4

[root@3.5.5Biz-46 ~]#

这种方式下可看到一个所谓的release号，比如上边的例子是2.4

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

注意：第（2）（3）两种方法只对Redhat Linux有效

Last login: Tue Aug 5 14:23:17 2008 from 10.140.70.229

sc

sc@taishan /home/sc >

sc@taishan /home/sc >

sc@taishan /home/sc > sc

-sh: sc: command not found

sc@taishan /home/sc > uname -a

Linux taishan 2.6.9-42.14.ELsmp #1 SMP Wed Sep 27 18:31:19 EDT 2006 i686 i686 i386 GNU/Linux

sc@taishan /home/sc > cat   /proc/version

Linux version 2.6.9-42.14.ELsmp (brewbuilder@hs20-bc2-3.build.redhat.com) (gcc version 3.4.6 20060404 (Red Hat 3.4.6-3)) #1 SMP Wed Sep 27 18:31:19 EDT 2006

sc@taishan /home/sc > uname   -rcat   /etc/issue

uname: invalid option -- c

Try `uname --help' for more information.

sc@taishan /home/sc > cat   /etc/issue

***************************************************************************

                            NOTICE TO USERS

This computer system is the private property of Nokia, whether

individual, corporate or government. It is for authorized use only.

Users (authorized or unauthorized) have no explicit or implicit

expectation of privacy.

Any or all uses of this system and all files on this system may be

intercepted, monitored, recorded, copied, audited, inspected, and

disclosed to your employer, to authorized site, government, and law

enforcement personnel, as well as authorized officials of government

agencies, both domestic and foreign.

By using this system, the user consents to such interception, monitoring,

recording, copying, auditing, inspection, and disclosure at the

discretion of such personnel or officials. Unauthorized or improper use

of this system may result in civil and criminal penalties and

administrative or disciplinary action, as appropriate. By continuing to use

this system you indicate your awareness of and consent to these terms

and conditions of use. LOG OFF IMMEDIATELY if you do not agree to the

conditions stated in this warning.

****************************************************************************

sc@taishan /home/sc > uname -r

2.6.9-42.14.ELsmp

sc@taishan /home/sc > lsb_release -a

-sh: lsb_release: command not found

sc@taishan /home/sc > su -

Password:

su: incorrect password

sc@taishan /home/sc > su -

Password:

[root@taishan ~]# lsb_release -a

-bash: lsb_release: command not found

[root@taishan ~]# lsb_release -a

-bash: lsb_release: command not found

[root@taishan ~]# cat /etc/redhat-release

Red Hat Enterprise Linux AS release 4 (Nahant Update 4)

[root@taishan ~]# rpm -q redhat-release

redhat-release-4AS-5.5

[root@taishan ~]#