查看centos操作系统的版本的命令

[hsg@hsgpc ~]$ cat /proc/version
Linux version 2.6.32-573.8.1.el6.x86_64 ([e-mail]) (gcc version 4.4.7 20120313 (Red Hat 4.4.7-16) (GCC) ) #1 SMP Tue Nov 10 18:01:38 UTC 2015
[hsg@hsgpc ~]$ uname -a
Linux hsgpc 2.6.32-573.8.1.el6.x86_64 #1 SMP Tue Nov 10 18:01:38 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux
[hsg@hsgpc ~]$ uname -r
2.6.32-573.8.1.el6.x86_64
[hsg@hsgpc ~]$ cat /etc/issue
CentOS release 6.7 (Final)
Kernel \r on an \m


[hsg@hsgpc ~]$ cat /etc/redhat-release
CentOS release 6.7 (Final)
[hsg@hsgpc ~]$ getconf LONG_BIT
64
[hsg@hsgpc ~]$ file /bin/ls
/bin/ls: ELF 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.18, stripped
[hsg@hsgpc ~]$ getconf LONG_BIT
64
[hsg@hsgpc ~]$