如何查看centos系统版本是32位还是64位

[root@linuxzgf ~]#getconf LONG_BIT [root@linuxzgf ~]#getconf WORD_BIT

[root@linuxzgf ~]#uname -a

[root@linuxzgf ~]#file /sbin/init /sbin/init: ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV), for GNU/Linux 2.6.9, dynamically linked (uses shared libs), for GNU/Linux 2.6.9, stripped

[root@linuxzgf ~]#file /bin/cat /bin/cat: ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV), for GNU/Linux 2.6.9, dynamically linked (uses shared libs), for GNU/Linux 2.6.9, stripped

[root@linuxzgf ~]#uname -m x86_64 3.# arch x86_64 i686