1) 登录到服务器执行 lsb_release -a ，即可列出所有版本信息:
[root@3.5.5Biz-46 ~]# lsb_release -aLSB
Version: 1.3Distributor ID: RedHatEnterpriseASDescription: Red Hat Enterprise Linux AS release 4 (Nahant Update 1)Release: 4Codename: 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:
[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:
[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
RedHat/CentOS 各发行版及内核版本号
|
发行版 |
内核版本 |
|
Redhat 9.0 |
2.4.20-8 |
|
RHEL 3 Update 8 |
2.4.21-47 |
|
RHEL 4 Update 0 |
2.6.9-5 |
|
RHEL 4 Update 1 |
2.6.9-11 |
|
RHEL 4 Update 2 |
2.6.9-22 |
|
RHEL 4 Update 3 |
2.6.9-34 |
|
RHEL 4 Update 4 |
2.6.9-42 |
|
RHEL 4 Update 5 |
2.6.9-55 |
|
RHEL 4 Update 6 |
2.6.9-67 |
|
RHEL 4 Update 7 |
2.6.9-78 |
|
RHEL 4 Update 8
RHEL 5 Update 0 |
2.6.9-89
2.6.18-8 |
|
RHEL 5 Update 1 |
2.6.18-53 |
|
RHEL 5 Update 2 |
2.6.18-92 |
|
RHEL 5 Update 3 |
2.6.18-128 |
RHEL 5 Update 4 2.6.18-159
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
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