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# uname -a Linux localhost.localdomain 2.6.18-164.el5PAE #1 SMP Thu Sep 3 04:10:44 EDT 2009 i686 i686 i386 GNU/Linux (查看当前操作系统内核信息) # 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) (责任编辑：IT) |