linux查看系統版本號命令匯總

以Ubuntu 20.04為例，常用的查看系統版本號命令如下：

cat /proc/version

Linux version 5.11.0-41-generic (buildd@lgw01-amd64-005) (gcc (Ubuntu 9.3.0-17ubuntu1~20.04) 
9.3.0, GNU ld (GNU Binutils for Ubuntu) 2.34) #45~20.04.1-Ubuntu SMP Wed Nov 10 10:20:10 UTC 2021

cat /etc/issue

Ubuntu 20.04.3 LTS \n \l

uname -a

Linux ubuntu 5.11.0-41-generic #45~20.04.1-Ubuntu SMP Wed Nov 10 10:20:10 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux

lsb_release -a

LSB Version:    core-11.1.0ubuntu2-noarch:security-11.1.0ubuntu2-noarch
Distributor ID:    Ubuntu
Description:    Ubuntu 20.04.3 LTS
Release:    20.04
Codename:    focal

cat /etc/lsb-release

DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=20.04
DISTRIB_CODENAME=focal
DISTRIB_DESCRIPTION="Ubuntu 20.04.3 LTS"