1:版本信息
(1) uname -a 内核信息
zhangx@ubuntu:/home$ uname -a
Linux ubuntu 5.4.0-58-generic #64~18.04.1-Ubuntu SMP Wed Dec 9 17:11:11 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux
(2) cat /proc/version 版本信息
zhangx@ubuntu:/home$ cat /proc/version
Linux version 5.4.0-58-generic (buildd@lgw01-amd64-040) (gcc version 7.5.0 (Ubuntu 7.5.0-3ubuntu1~18.04)) #64~18.04.1-Ubuntu SMP Wed Dec 9 17:11:11 UTC 2020
（3）cat /etc/issue 发行版本信息
zhangx@ubuntu:/home$ cat /etc/issue
Ubuntu 18.04.3 LTS \n \l
(4) lsb_release -a
zhangx@ubuntu:/home$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 18.04.3 LTS
Release: 18.04
Codename: bionic
2.运行信息
(1) getconf LONG_BIT （Linux查看版本说明当前CPU运行在32bit模式下， 但不代表CPU不支持64bit）
zhangx@ubuntu:/home$ getconf LONG_BIT
64
