UBUNTU 101

YOUR TITLE JUST MEANS…

What you do in your working time, not the definition of what you can do.

無論是前端、後端工程師，掌握整個web技術的「基礎」是我認為自稱「web developer」的最低底線，定義如下：

1. Linux => 管理一台linux機器，架起網頁伺服器、資料庫、應用程式
2. Database => 最基礎的RBS，可以用SQL操作基礎ERP會需要做的操作
3. 網頁伺服器 => 懂nginx或apache
4. 後端框架=> 讓機器有應用程式可以跑起來
5. 前端框架=> 可以用純API的方式與後端溝通，進而做到前後端分離

至今寫網頁約一年，主要都是在後端框架的部分打轉，約半年前開始精進jQuery、三個月前開始學習前端框架，以用vue js 實作一個不複雜的SPA

而這篇，就是在紀錄 Udemy 課程 Ubuntu Linux Server Basics的筆記

Day1:

1. do not authenticate any root account, use ‘sudo’ to accomplish what you want to do
2. in the file list, the white one is a file, purple is a directory
3. rmdir can delete the empty director
4. rm -R, R means [recursive]
5. && can concatenate and run two or more scripts simultaneously
6. do not use [space] in the name of directory like : [New project]
7. use pager in cat cat file_name | [less]
8. move file mv file_place new_file_place
9. [rsync] is just like [cp] but much powerful, especially the progressing interface
10. [shutdown] -h ‘optional message’, -r means reboot. The different between reboot and shutdown -r is shutdown -r can leave the optional message that other people can understand why you do shutdown.
11. user [man]

Dya2:

1. use [date] to modify the time in the machine.
2. use [sudo adduser user_name] to add a user.
3. use [sudo addgroup group_name] to add a group, the reason we need to use group is managing the privilege by group instead of individual.
4. see all of the group in the ubuntu [cat /etc/group]
5. see all of the user in the ubuntu [cat /etc/passwd]
6. bash is one of the shell script