ubuntu系统版本查询命令方法

cat /proc/version 查看

$ cat /proc/version
Linux version 5.4.0-113-generic (buildd@lcy02-amd64-067) (gcc version 9.4.0 (Ubuntu 9.4.0-1ubuntu1~20.04.1)) #127-Ubuntu SMP Wed May 18 14:30:56 UTC 2022

uname -a 查看

$ uname -a
Linux fnnehdxds6lztku 5.4.0-113-generic #127-Ubuntu SMP Wed May 18 14:30:56 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux

lsb_release -a 查看

$ lsb_release -a
LSB Version:    core-11.1.0ubuntu2-noarch:security-11.1.0ubuntu2-noarch
Distributor ID: Ubuntu
Description:    Ubuntu 20.04.4 LTS
Release:    20.04
Codename:   focal

hostnamectl 查看

$ hostnamectl
   Static hostname: fnnehdxds6lztku
         Icon name: computer-vm
           Chassis: vm
        Machine ID: 20220524174107033216151293301385
           Boot ID: 2eedfe0be6cc45c49ab3761e766c1f62
    Virtualization: kvm
  Operating System: Ubuntu 20.04.4 LTS
            Kernel: Linux 5.4.0-113-generic
      Architecture: x86-64

cat /etc/issue 查看

$ cat /etc/issue
Ubuntu 20.04.4 LTS \n \l