CSC161 2010F, Class 54: Shell Programming (1)

Overview:
* Lab.

Admin:
* Apologies for the difficulty of exam 3.
  * Toys and cool food
* Today's lab is by Henry Walker.  
  Rather than rewrite it, I've linked to his directory.
* EC for tonight's film.  Please attend!
* EC for Thursday's CS extra.  Please attend!
* Wednesday's class: Wrapup.
* Friday's class: About exam 3.
* Sam, tell me about the final
  * Optional
  * If you take it and do better than your worst exam, it replaces
    your worst exam
  * If you take it and do worse than your worst exam, I will be sad.
    But it won't affect your grade.
  * In class, four or five questions.  Sam is debating between ...
    * On the computer with Sam-written unit tests.
    * On paper, without expectaqtions of perfect correctness
  * Expectation that you will not use Internet access, but you may use
    shell commands.  (man)
* I hope that your Happy Exciting Lovely Learning week is going well
* Sam will distribute EC forms later today

Hints on the Lab

* When you want to put the results of a command in the middle of an echo, put the command in backquotes

	echo You are in `pwd`

* You might instead find it helpful to use the -n flag to ech

	echo -n You are in
	pwd