linux系统版本命令
一、查看系统内核版本命令:
1)[root@pgserver04 ~]# cat /proc/version Linux version 2.6.18-238.el5PAE (mockbuild@ls20-bc2-13.build.redhat.com) (gcc version 4.1.2 20080704 (Red Hat 4.1.2-50)) #1 SMP Sun Dec 19 14:42:44 EST 2010 [root@pgserver04 ~]#
2)[root@pgserver04 ~]# uname -r 2.6.18-238.el5PAE
3)[root@pgserver04 ~]# uname -a Linux pgserver04 2.6.18-238.el5PAE #1 SMP Sun Dec 19 14:42:44 EST 2010 i686 i686 i386 GNU/Linux [root@pgserver04 ~]#
二、查看linux版本:
1)执行 lsb_release -a ,即可列出所有版本信息:
[root@pgserver04 ~]# lsb_release -a LSB Version: :core-4.0-ia32:core-4.0-noarch:graphics-4.0-ia32:graphics-4.0-noarch:printing-4.0-ia32:printing-4.0-noarch Distributor ID: RedHatEnterpriseServer Description: Red Hat Enterprise Linux Server release 5.6 (Tikanga) Release: 5.6 Codename: Tikanga
注:这个命令适用于所有的linux,包括Redhat、SuSE、Debian等发行版。
2) 执行cat /etc/issue,例如如下:
[root@pgserver04 ~]# cat /etc/issue Red Hat Enterprise Linux Server release 5.6 (Tikanga) Kernel \r on an \m
3) 执行cat /etc/redhat-release
[root@pgserver04 ~]# cat /etc/redhat-release Red Hat Enterprise Linux Server release 5.6 (Tikanga) [root@pgserver04 ~]#
注:这种方式下可以直接看到具体的版本号,比如 AS4 Update 1
4)执行rpm -q redhat-release ,例如如下:
[root@pgserver04 ~]# rpm -q redhat-release redhat-release-5Server-5.6.0.3 [root@pgserver04 ~]#
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
注:第3)、4)两种方法只对Redhat Linux有效
5)[root@pgserver04 ~]# file /bin/bash /bin/bash: ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV), for GNU/Linux 2.6.9, dynamically linked (uses shared libs), for GNU/Linux 2.6.9, stripped [root@pgserver04 ~]#
6)[root@pgserver04 ~]# file /bin/cat /bin/cat: ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV), for GNU/Linux 2.6.9, dynamically linked (uses shared libs), for GNU/Linux 2.6.9, stripped [root@pgserver04 ~]#