centOS 5 / 6 버전 확인하기

centOS 5
[root@localhost]# lsb_release -a
LSB Version: :core-4.0-ia32:core-4.0-noarch:graphics-4.0-ia32:graphics-4.0-noarch:printing-4.0-ia32:printing-4.0-noarch
Distributor ID: CentOS
Description: CentOS release 5.8 (Final)
Release: 5.8
Codename: Final
[root@localhost]#

32/64bit 확인
[root@localhost]# getconf LONG_BIT
32

centOS 6
cat /etc/*release*
CentOS release 6.4 (Final)
CentOS release 6.4 (Final)
CentOS release 6.4 (Final)
cpe:/o:centos:linux:6:GA