1. 查看内核版本命令:
[root@asic ~]# cat /proc/version
Linux version 2.6.9-89.ELsmp ([email protected]) (gcc version 3.4.6 20060404 (Red Hat 3.4.6-11)) #1 SMP Mon Apr 20 10:34:33 EDT 2009
[root@asic ~]# uname -a
Linux asic 2.6.9-89.ELsmp #1 SMP Mon Apr 20 10:34:33 EDT 2009 i686 i686 i386 GNU/Linux
[root@asic ~]# uname -r
2.6.9-89.ELsmp
2.查看linux的版本主要有三种方法:
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@asic ~]# lsb_release -a
LSB Version: 1.3
Distributor ID: RedHatEnterpriseAS
Description: Red Hat Enterprise Linux AS release 4 (Nahant Update 1)
Release: 4
Codename: NahantUpdate1
[root@asic ~]#
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@asic ~]# cat /etc/redhat-release
Red Hat Enterprise Linux AS release 4 (Nahant Update 1)
[root@asic ~]#
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@asic ~]# rpm -q redhat-release
redhat-release-4AS-2.4
[root@asic ~]#
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