查看CentOS 版本信息
cat /etc/issue
CentOS release 6.3 (Final)
Kernel \r on an \m
cat /etc/redhat-release
CentOS release 6.3 (Final)
查看CentOS 内核版本
cat /proc/version
Linux version 2.6.32-279.el6.i686 ([email protected]) (gcc version 4.4.6 20120305 (Red Hat 4.4.6-4) (GCC) ) #1 SMP Fri Jun 22 10:59:55 UTC 2012
查看64bit Linux内核版本
Linux version 2.6.32.12-0.7-default (geeko@buildhost) (gcc version 4.3.4 [gcc-4_3-branch revision 152973] (SUSE Linux) ) #1 SMP 2010-05-20 11:14:20 +0200
查看计算机位数
file /bin/ls
32bit
/bin/ls: ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.18, stripped
64bit
/bin/ls: ELF 64-bit LSB executable, x86-64, version 1 (SYSV), for GNU/Linux 2.6.4, dynamically linked (uses shared libs), stripped
getconf LONG_BIT
32
64
查询kernel 内核信息
uname -a
32位
Linux localhost.localdomain 2.6.32-279.el6.i686 #1 SMP Fri Jun 22 10:59:55 UTC 2012 i686 i686 i386 GNU/Linux
64位
Linux linux 2.6.32.12-0.7-default #1 SMP 2010-05-20 11:14:20 +0200 x86_64 x86_64 x86_64 GNU/Linux