COMP 2673 – Lab 2 Assignment

Goals:

emacs;

Unix commands;

pine;

Important: you are encouraged to use keyboards instead of mouse since the buttons and menus are only for xemacs on the Sun machines.

Instructions:

Steps	Commands and keystrokes
-1. log on to a Sun machine.	password ready
0. open a terminal window.	right click, select Tools and then Terminal
1. copy all the files under the directory ~llin/comp2673/lab2/ to /IntroToCS3 under your home directory.	ls <dir> - list files under a directory cp <source> <destination> - copy files from one place to another pwd – show current directory cd <dir> - change directory
2. open the file haar.c in emacs two ways to do it: 1. type the file name from the command prompt; 2. start emacs first, then select the file.	1. emacs haar.c or 2. emacs, open a file: ctrl-x ctrl-f choose the directory and filename
3. add your name at the beginning of the file.	move around: 1. arrow keys 2. Esc f: forward one word 3. Esc b: backward one word 4. ctrl-a: to the beginning of the line 5. ctrl-e: to the end of the line 6. ctrl-v: forward one screen 7. Esc v: backward one screen 8. Esc <: to the beginning of the file 9. Esc >: to the end of the file
4. in the function haarTransform (NOT the whole file), change the variable matrix1 to wmatrix, change the variable matrix2 to tmatrix.	ctrl-s: incremental search forward (enter the word to be searched the first time, and repeat) ctrl-r: incremental search backward Esc %: replace query - enter the word to be replaced - enter the word to be replaced with - use space or y to replace and go to the next instance - use Delete or n to not replace and go to the next instance
5. remove all the comments in the file (NOT recommended in real life).	delete text: 1. ctrl-d: delete a character 2. Delete: delete previous character 3. Esc d: delete a word 4. Esc Delete: delete previous word 5. ctrl-k: delete a line 6. ctrl-x u: undo!
7. save the file.	ctrl-x ctrl-s: save a file
8. use windows: split the window into 2 and move back and forth between them.	ctrl-x 2: split window vertically ctrl-x o: move to the other window ctrl-x 0: delete current window
8. exit.	ctrl-x ctrl-c: exit emacs
9. email the file haar.c to your TA	Start pine, in the attachment field, enter the filename along with the full directory, e.g., IntroToCS3/haar.c.