linux下如何查询系统信息?

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输入"uname -a ",可显示电脑以及操作系统的相关信息。 
输入"cat /proc/version",显示正在运行的内核版本。
输入"cat /etc/issue", 显示的是发行版本信息
lsb_release -a (适用于所有的linux,包括Redhat、SuSE、Debian等发行版,但是在debian下要安装lsb)
SZV1000123502:~ # uname -a
Linux SZV1000123502 3.0.76-0.11-default #1 SMP Fri Jun 14 08:21:43 UTC 2013 (ccab990) x86_64 x86_64 x86_64 GNU/Linux
SZV1000123502:~ # cat /proc/version 
Linux version 3.0.76-0.11-default (geeko@buildhost) (gcc version 4.3.4 [gcc-4_3-branch revision 152973] (SUSE Linux) ) #1 SMP Fri Jun 14 08:21:43 UTC 2013 (ccab990)
SZV1000123502:~ # cat /etc/issue

Welcome to SUSE Linux Enterprise Server 11 SP3  (x86_64) - Kernel \r (\l).


SZV1000123502:~ # lsb_release -a
LSB Version: n/a
Distributor ID: SUSE LINUX
Description: SUSE Linux Enterprise Server 11 (x86_64)
Release: 11
Codename: n/a
SZV1000123502:~ # 



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