# 2022q1 Homework3 (quiz3) contributed by < [`RoyWFHuang`](https://github.com/RoyWFHuang) > ###### tags: `linux_class` > [2022q1 第 3 週測驗題](https://hackmd.io/@sysprog/linux2022-quiz3?fbclid=IwAR3DOwHxkJil7Jbr7UG8liqY9yPVOqfNcQQQ2w9dGDobJXz0HbmisETHvEE#2022q1-%E7%AC%AC-2-%E9%80%B1%E6%B8%AC%E9%A9%97%E9%A1%8C1) 開發環境為: OS: ubuntu 20.04 kernel ver: 5.4.0-99-generic CPU arch: x86_64 ```shell roy@roy-ThinkPad-T460s:$ lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 20.04.4 LTS Release: 20.04 Codename: focal roy@roy-ThinkPad-T460s:~$ uname -a Linux roy-ThinkPad-T460s 5.4.0-100-generic ```