[UNIX][OS] os version
1. Linux 版號
cat /proc/version
2. CentOS version
cat /etc/*release
cat /etc/redhat-release
3. uname -a ( 2017/05/10 更新 )
[vl97@ST01APTN01 ~]$ uname -a
Linux ST01APTN01 3.10.0-514.el7.x86_64 #1 SMP Tue Nov 22 16:42:41 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux