# 第一部份
1. A text-based user interface. You can use to view and manage computer files.
2. A prompt is text or symbols used to represent the system's readiness to perform the next command.
3. the directory or folder in which you are currently working
4. A shell is a software interface that's often a command line interface that enables the user to interact with the computer.
5. make directory
6. mv
7. home directory
8. refers to a location that is relative to a current directory.
9. j
h*20
b
10. zz
11. 就唸 vi

# 第二部份

print("Hello world!\n")
print("My name is Ray\n")
print("Today is 3/7")