linux查看系统和内核版本

查看内核版本

[root@master ~]# uname -r
3.10.0-862.11.6.el7.x86_64

列出所有版本信息

lsb_release -a

[root@master ~]# lsb_release -a
LSB Version:    :core-4.1-amd64:core-4.1-noarch
Distributor ID: CentOS
Description:    CentOS Linux release 7.5.1804 (Core) 
Release:        7.5.1804
Codename:       Core

root@ubuntu:/var/history# lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 16.04.3 LTS
Release:        16.04
Codename:       xenial