// 查看版本
[yaoyakun@h16-vm2 marketadmin]$ cat /proc/version
Linux version 2.6.32-042stab108.8 (root@kbuild-rh6-x64.eng.sw.ru) (gcc version 4.4.6 20120305 (Red Hat 4.4.6-4) (GCC) ) #1 SMP Fri Jan 13 10:32:04 MSK 2017

[yaoyakun@h16-vm2 marketadmin]$ uname -a
Linux h16-vm2.corp.yongche.org 2.6.32-042stab108.8 #1 SMP Fri Jan 13 10:32:04 MSK 2017 x86_64 x86_64 x86_64 GNU/Linux

[yaoyakun@h16-vm2 marketadmin]$ uname -r
2.6.32-042stab108.8

[yaoyakun@h16-vm2 marketadmin]$ cat /etc/issue
CentOS release 6.5 (Final)
Kernel \r on an \m

[yaoyakun@h16-vm2 marketadmin]$ cat /etc/redhat-release
CentOS release 6.5 (Final)
// 32位 or 64位
[yaoyakun@h16-vm2 marketadmin]$ getconf LONG_BIT
64

[yaoyakun@h16-vm2 marketadmin]$ 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@H_502_91@