COP 3344-01 Introduction to Unix: Lecture 3

Learning objectives

After this class, you should be able to:

1. Use emacs, pico, and vi to create and edit text files.
2. Explain and use the following commands in pico ^^, ^b, ^d, ^f, ^k, ^n, ^o, ^p, ^u, ^v, ^x, and ^y.
3. Explain and use the following commands in emacs ^b, ^d, ^f, ^g, ^k, ^n, ^p, ^v, ESC v, ^x ^c, ^x ^f, ^x ^s, and ^y.
4. Explain and use the following commands in vi in the command mode h, i, j, k, l, :q, :w, and x.
5. How will you switch from insert mode to command mode in vi?

Reading assignment

1. JEA: Chapters 13-16.
2. Lecture slides: Lecture3.

Exercises and review questions

• Questions on current lecture's material
  1. Create a text file using each of the three editors: emacs, pico, and vi. Practice use of the commands given in the learning objectives. Choose one of the editors, and learn about it in greater detail.

• Questions on next lecture's material
  1. We used the cat command to create a file in lecture 1. Find out what this command really does. Also explain what the purpose of >> was, in creating files using cat in lecture 1. (Hint: Find material on IO redirection.) (Post a brief answer on the discussion board)