How to check system version information on ubuntu

1. Enter the command

cat /proc/version

and the display will be as follows

Linux version 4.10.0-28-generic (buildd@lgw01-12)     //linux内核版本号
gcc version 5.4.0          //gcc编译器版本号
Ubuntu 5.4.0-6ubuntu1     //Ubuntu版本号

2. Enter the command

cat /proc/version

and the display will be as follows

Linux version 4.10.0-28-generic (buildd@lgw01-12) //   linux内核版本号
gcc version 5.4.0    //   gcc编译器版本号
Ubuntu 5.4.0-6ubuntu1     //  Ubuntu版本号

3. Enter the command

lsb_release -a

The display is as follows

Distributor ID: Ubuntu      //类别是ubuntu
Description:  Ubuntu 16.04.3 LTS   //16年3月发布的稳定版本，LTS是Long Term Support：长时间支持版本，支持周期长达三至五年
Release:    16.04       //发行日期或者是发行版本号
Codename:   xenial       //ubuntu的代号名称

Recommended tutorial: linux tutorial

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