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  $Id: index.rst 87 2007-10-11 22:46:18Z selfpace $

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CS 9E - Practice Quiz 1
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Fundamentals
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  :Last Updated: $Date: 2007-10-11 15:46:18 -0700 (Thu, 11 Oct 2007) $

Background
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Overview
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This practice quiz is designed to prepare you for your first quiz.  The length 
and difficulty should match the real quiz, while the exact material covered may 
be different.  On the real quiz, you may see any material covered in the first
unit readings.

Suggested Exercises
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In addition to this practice quiz, we suggest you attempt the following book 
exercises to prepare you for the quiz.

Das: 1.7, 1.10-1.12, 1.15, 2.10, 2.15, 2.16, 3.9, 3.15, 4.4, 4.5, 4.9-4.11, 7.1, 7.23-7.25, 7.27, 8.2, 8.10-8.12, 8.17, 9.6-9.9, 9.11-9.18, 10.1-10.3, 10.5, 10.6, 10.17, 10.20

Practice Quiz
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Question 1
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Given the directory listing below, answer the following questions.

::

  ~ $ ls -al q1
  total 16
  dr-xr-x---   2 me users 4096 2006-09-29 13:58 .
  drwx--x--x 127 me users 8192 2006-09-29 13:58 ..
  -r--r-----   1 me users   42 2006-09-29 13:58 data

a) Do you have sufficient permissions to edit the file 'data'? Explain.
b) Do you have sufficient permissions to delete the file 'data'? Explain.
c) Do you have sufficient permissions to add new files to the 'q1' directory? Explain.
d) Do you have sufficient permissions to delete the 'q1' directory? Explain.

Question 2
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Marrio woke up this morning and decided to get a present for Princess Peach.  He
has a file named 'given' listing all the presents he has given her in the past two
months.  He has another file 'desired' in which Peach listed all the presents she
wanted.  Toad just sent Mario another file called 'for_sale' in which Toad lists
all the items he has for sale today.  Each file has one item per line.

Example::

  Banana Peel
  Red Shell
  Gold Mushroom

Create a series of commands to help Mario figure out what to buy Peach.  The result
should be a list of items which Peach wants, Toad has in stock, and which Mario has
not bought her already.

Question 3
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As part of your research, you need to run an 'analisis.sh' script.  This time, 
however, it's taking longer to execute than usual, and you would like to move it 
from the foreground to the background.  What key strokes and commands should you 
use to make this happen?