操作系统位数

1.#uname -a

# uname -a 

Linux desktop 2.6.35-23-generic #37-Ubuntu SMP Fri Nov 5 19:17:11 UTC 2010 i686 GNU/Linux

这是32位的 

#uname -a 

Linux backup 2.6.9-67.ELsmp #1 SMP Wed Nov 7 13:58:04 EST 2007 i686 i686 i386 GNU/Linux 

注意：Ixxx的全是32位的，有X86—64的全是64位

2.#file /sbin/init

/sbin/init: ELF 32-bit LSB shared object, Intel 80386, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.15, stripped

3.查看cpu是多少位的

more /proc/cpuinfo

操作系统位数

原文：http://bjdongpengfei.blog.51cto.com/1140662/1632385