1What is the shell
2.What is the difference between the a terminal and a shell
3.what is the shell prompt?
4.How to use History
5.What do commands cd, pwd, ls do
6.What are the . and .. directories?
7.What is root directory and what is home directory?
8.What do the commands ls, less, file do
9.What does the ln command do
10.What is a hard link and what is a symbolic link
11.The cp, mv, rm, mkdir commands
12.What are wildcards and how do they work
14.What do type, which, help, man commands do
15.What is an alias
16.How to read a man page