http://blog.163.com/lideren_2008/blog/static/147057920117242123444/# lsb_release -a
LSB Version: :core-3.1-ia32:core-3.1-noarch:graphics-3.1-ia32:graphics-3.1-noarch
Distributor ID: CentOS
Description: CentOS release 5.4 (Final)
Release: 5.4
Codename: Final
(查看当前操作系统发行版信息)
# cat /proc/cpuinfo | grep name | cut -f2 -d: | uniq -c
8 Intel(R) Xeon(R) CPU E5620 @ 2.40GHz
(8个逻辑CPU, CPU型号)
# cat /proc/cpuinfo | grep physical | uniq -c
8 physical id : 0
(说明实际上是一颗4核的CPU)
# getconf LONG_BIT
32
(说明当前CPU运行在32bit模式下, 但不代表CPU不支持64bit)
# cat /proc/cpuinfo | grep flags | grep ‘ lm ‘ | wc -l
4
(结果大于0, 说明支持64bit计算. lm指long mode, 支持lm则是64bit)
# free -m
(-g)
m=>mb g=>gb
Linux 硬件信息
原文：http://www.cnblogs.com/webglcn/p/5597541.html
