这本书侧重在编程方面：
https://cherry-creek.net/book/The_Linux_Programming_Interface.pdf
学习Shell的书籍：
https://cherry-creek.net/book/Learning_the_bash_Shell_3rd_Edition.pdf
使用困难的方法学习Perl:
https://cherry-creek.net/book/Learning_Perl_the_Hard_Way.pdf
Ubuntu官方教材
https://cherry-creek.net/book/The_Official_Ubuntu_Book_7th.pdf
https://cherry-creek.net/book/Apress_Pro_Vim_1484202511.pdf
https://cherry-creek.net/book/Wiley_Linux_Command_Line_and_Shell_Scripting_Bible_3rd_Edition_111898384X.pdf
https://cherry-creek.net/book/HarperBusiness_Just_for_Fun_The_Story_of_an_Accidental_Revolutionary_0066620732.pdf
https://cherry-creek.net/book/Apress_C_Quick_Syntax_Reference_1430264993.pdf
