What have we covered so far?

Lecture 1:
Unix command: logging into unix via ssh secure shell client, 
              logging off from unix, 
			  mkdir, cd, ls
Memory model: treating memory space as residential area, and
              symbolic names acted like zip code referring to
			  houses in the area
Programming action:
              downloading code from website,
			  dragging code from local pc to unix ssh file 
			    transfer window,
			  compiling the code at unix: gcc
			  executing the executable code: a.out
              writing pseudo-code / algorithms with the memory
			    model in mind

Lecture 2:
Unix command: 
              copy a file: cp <original-file-name> <new-file-name>
vim command:  different modes
              command mode
			    saving your editing action using ":w!", 
				quiting from editing without saving using ":q!"
			  entering insert mode using "i"
			  exiting insert mode using "<esc>"
		      deleting the character under the cursor using "x"
			  deleting the line of text where the cursor is using "dd"
			  making your C program correctly indented using "gg=G"

Programming action: 
              turning pseudo-codes to programs
              assignment statement: lvalue, rvalue
			  program structures:
			    declaration
				  type int, float, and void
				program body
				main function 
				return statement
			  compiling the code with warning: gcc -Wall
			  compiling the code with new executable code name: 
			    gcc -o <newname>
			  executing the code using new name