1. 查看内核版本

 

1）dpfl@ubuntu:~$ cat /proc/version

      Linux version 3.5.0-23-generic (buildd@akateko) (gcc version 4.6.3 (Ubuntu/Linaro 4.6.3-1ubuntu5) ) #35~precise1-Ubuntu SMP Fri Jan 25 17:15:33 UTC 2013

2）dpfl@ubuntu:~$ uname -a

     Linux ubuntu 3.5.0-23-generic #35~precise1-Ubuntu SMP Fri Jan 25 17:15:33 UTC 2013 i686 i686 i386 GNU/Linux

3）dpfl@ubuntu:~$ uname -r

     3.5.0-23-generic

注：uname命令的详细用法用“man uname”查看

 

2. 查看linux版本

1）dpfl@ubuntu:~$ lsb_release -a

No LSB modules are available.

Distributor ID: Ubuntu

Description: Ubuntu 12.04.2 LTS

Release: 12.04

Codename: precise

注:这两个命令适用于所有的linux，包括Redhat、SuSE、Debian等发行版

2）dpfl@ubuntu:~$ cat /etc/issue

Ubuntu 12.04.2 LTS \n \l

3）dpfl@ubuntu:~$ file /bin/bash

/bin/bash: ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.24, BuildID[sha1]=0xf199a4a89ac968c2e0e99f2410600b9d7e995187, stripped

4）dpfl@ubuntu:~$ file /bin/cat

/bin/cat: ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.24, BuildID[sha1]=0x3bb5dd3596854569e41ffcddcc01e5a1228ec05d, stripped

下面是Redhat系统的查看linux的

5）$ cat /etc/redhat-release

这种方式下可以直接看到具体的版本号，比如 AS4 Update 1

6）$ rpm -q redhat-release

可以看到一个所谓的release号