开发人员需要熟知的常用Linux命令Version、Kernel查看

当我们需要在Linux系统中安装一些软件而去下载安装文件时，一般都需要确认到底下载哪个版本的安装包，这就需要我们知道自己的Linux系统到底是什么版本、什么内核，常见的版本、内核查看命令或者文件有如下几个：

version、uname、lsb_release、issue、redhat-release；

查看内核版本：

[admin@mall_dev4 ~]$ cat /proc/version 

Linux version 2.6.9-67.ELxenU (brewbuilder@ls20-bc1-14.build.redhat.com) (gcc version 3.4.6 20060404 (Red Hat 3.4.6-8)) #1 SMP
Wed Nov 7 14:19:15 EST 2007

[admin@mall_dev4 ~]$ uname -a

Linux mall_dev4 2.6.9-67.ELxenU #1 SMP Wed Nov 7 14:19:15 EST 2007 i686 i686 i386 GNU/Linux

查看Linux版本：

[admin@mall_dev4 ~]$ lsb_release -a

LSB Version:    :core-3.0-ia32:core-3.0-noarch:graphics-3.0-ia32:graphics-3.0-noarch

Distributor ID: RedHatEnterpriseAS

Description:    Red Hat Enterprise Linux AS release 4 (Nahant Update 6)

Release:        4

Codename:       NahantUpdate6

[admin@mall_dev4 ~]$ cat /etc/issue

Red Hat Enterprise Linux AS release 4 (Nahant Update 6)

Kernel /r on an /m

[admin@mall_dev4 ~]$ cat /etc/redhat-release 

Red Hat Enterprise Linux AS release 4 (Nahant Update 6)

[admin@mall_dev4 ~]$ rpm -q redhat-release

redhat-release-4AS-7

查看Linux是否为64位：

[admin@mall_dev4 ~]$ getconf LONG_BIT

32

[admin@mall_dev4 ~]$ file /bin/ls

/bin/ls: ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV), for GNU/Linux 2.2.5, dynamically linked (uses shared libs), stripped