1、查看文件信息，包含32-bit就是32位，包含64-bit就是64位
root@HDController:/home/nulige/tools# uname -a
Linux HDController 4.4.0-83-generic #106-Ubuntu SMP Mon Jun 26 17:54:43 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux
2、查看Ubuntu版本
root@HDController:/home/nulige/tools# lsb_release -a
No LSB modules are available.
Distributor ID:Ubuntu
Description:Ubuntu 16.04 LTS
Release:16.04
Codename:xenial