转自:http://snake-hand.iteye.com/blog/1523106
#uname -a
Linux euis1 2.6.9-55.ELsmp #1 SMP Fri Apr 20 17:03:35 EDT 2007 i686 i686 i386 GNU/Linux
(查看当前操作系统内核信息)
#cat /etc/issue 或者 cat /etc/redhat-release
Red Hat Enterprise Linux AS release 4 (Nahant Update 5)
(查看当前操作系统发行版信息)
#cat /proc/version (Linux查看当前操作系统版本信息)
Linux version 2.6.32-358.6.2.el6.x86_64 (mockbuild@c6b8.bsys.dev.centos.org) (gcc version 4.4.7 20120313 (Red Hat 4.4.7-3) (GCC) ) #1 SMP Thu May 16 20:59:36 UTC 2013
#cat /proc/cpuinfo | grep name | cut -f2 -d: | uniq -c
8Intel(R) Xeon(R) CPU E5410 @ 2.33GHz
(看到有8个逻辑CPU, 也知道了CPU型号)
#cat /proc/cpuinfo | grep physical | uniq -c
4physical id : 0
4physical id : 1
(说明实际上是两颗4核的CPU)
#getconf LONG_BIT
32
#getconf WORD_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
8
(结果大于0, 说明支持64bit计算. lm指long mode, 支持lm则是64bit)