查看Linux操作系统版本

1、查看内核版本命令

root@localhost:~> cat /proc/version
Linux version 2.6.5-7.244-smp (geeko@buildhost) (gcc version 3.3.3 (SuSE Linux)) #1 SMP Mon Dec 12 18:32:25 UTC 2005

2、查看Linux版本

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@localhost:/proc> lsb_release -a
LSB Version:    core-2.0-noarch:core-3.0-noarch:core-2.0-ia32:core-3.0-ia32:graphics-2.0-ia32:graphics-2.0-noarch:graphics-3.0-ia32:graphics-3.0-noarch
Distributor ID: SUSE LINUX
Description:    SUSE LINUX Enterprise Server 9 (i586)
Release:        9
Codename:       n/a

注: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/issue,例如如下:

root@localhost:/proc> cat /etc/issue

Welcome to SUSE LINUX Enterprise Server 9 (i586) - Kernel \r (\l).

3) 登录到linux执行cat /etc/redhat-release ,例如如下:

root@localhost:/proc> cat /etc/*release*
LSB_VERSION="core-2.0-noarch:core-3.0-noarch:core-2.0-ia32:core-3.0-ia32"
cat: /etc/lsb-release.d: 是一个目录
SUSE LINUX Enterprise Server 9 (i586)
VERSION = 9
PATCHLEVEL = 3

3、查看内存

free