方法：file /sbin/init 或者file /bin/ls
/sbin/init: ELF64-bitLSB executable, x86-64, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.18, stripped 用于查看linux机器是32位还是64位的方法。如果显示 64-bit 则为64位；
file /sbin/init
/sbin/init: ELF32-bitLSB executable, Intel 80386, version 1 (SYSV), for GNU/Linux 2.2.5, dynamically linked (uses shared libs), stripped
如果显示为32 bit 则为32bit；
uname -a:
uname -a
Linux pmx002**.**.** 2.6.32-71.el6.x86_64 #1 SMP Wed Sep 1 01:33:01 EDT 2010x86_64x86_64 x86_64 GNU/Linux 更多Linux知识可参考书籍《Linux就该这么学》。
