命令：cat /etc/redhat-release
[elsearch@localhost data]$ cat /etc/redhat-release
Red Hat Enterprise Linux Server release 7.0 (Maipo)
命令：cat /etc/redhat-release
[elsearch@localhost data]$ cat /etc/redhat-release
Red Hat Enterprise Linux Server release 7.0 (Maipo)
原文：https://www.cnblogs.com/zsg88/p/8183450.html