CST8207 Week 05 Notes
Midterm Test #1 review, Midterm Test #1

Ian! D. Allen – www.idallen.com

Winter 2018 - January to April 2018 - Updated 2018-02-28 19:00 EST

1 Student Feedback – How to Succeed in LinuxIndexup to index

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| | | | _____      __ |_   _|__   / ___| _   _  ___ ___ ___  ___  __| | (_)_ __   | |   (_)_ __  _   ___  __
| |_| |/ _ \ \ /\ / /   | |/ _ \  \___ \| | | |/ __/ __/ _ \/ _ \/ _` | | | '_ \  | |   | | '_ \| | | \ \/ /
|  _  | (_) \ V  V /    | | (_) |  ___) | |_| | (_| (_|  __/  __/ (_| | | | | | | | |___| | | | | |_| |>  < 
|_| |_|\___/ \_/\_/     |_|\___/  |____/ \__,_|\___\___\___|\___|\__,_| |_|_| |_| |_____|_|_| |_|\__,_/_/\_\

Some advice from CST student Joshua McNeely

“learn how to use the website early, because it is an incredibly useful resource (it’s the only resource needed).”

A note to you from a former student:

From: Christopher Glover
To: "Ian! D. Allen" <idallen@idallen.ca>
Subject: Fond Linux 1 memories

Hello Ian!

I wanted to thank you for all the hard work you put into teaching the
Linux I course last semester, especially with the extra difficulties
created by the work stoppage.

I was enrolled in a computer science program many years ago at
Algonquin, and I didn't manage to connect with the Linux professor's
teaching style.  As a result, I withdrew from the class, and ended
up off-track for my program, eventually leading to withdrawing from
the entire program.

I have seen several students make this same mistake in my new
program, and I was hoping you would share this email with your
level 1 students.  No matter how challenging they find Linux 1,
they really need to keep it on their schedule.  Personally, I found
your teaching style to be exactly what I needed to transform the
subject from something difficult, to a class that I truly enjoyed.
For anyone that finds Ian! D. Allen an "acquired taste" - take it
from me, you are in the very best of hands. Read all the words, do
all the worksheets and assignments, get help with them if needed,
and you will do well.

Christopher Glover
a.k.a "A Linux Person"

2 Readings, Assignments, Labs, Tests, and ToDoIndexup to index

2.1 Read (at least) these things (All The Words)Indexup to index

  1. Week 05 Notes HTML – this file – Read All The Words
  2. Shell I/O Redirection – stdin, stdout, stderr, and Pipes
  3. Practice Tests and Answers – practice questions for your midterm test.
  4. List of Commands – Command names you should know, listed by week
  5. Video Tutorials on Lynda.com – tagged by week number
  6. Linux and Sysadmin News in the World

2.2 Assignments this weekIndexup to index

Note that your upcoming Midterm Test #1 is worth more than three assignments put together. Don’t spend all your time doing an assignment at the expense of studying the Practice Tests and Answers for the Midterm Test.

Check the due date for each assignment and put a reminder in your agenda, calendar, and digital assistant. Just like in the Real World, not all due dates are on the same days or at the same times.

2.3 Lab work this weekIndexup to index

Note that your upcoming Midterm Test #1 is worth more than three assignments put together. Don’t spend all your time doing an assignment at the expense of studying the Practice Tests and Answers for the Midterm Test.

2.3.1 WorksheetsIndexup to index

Worksheets are preparation for your assignments. You can’t do the assignments without having done the worksheets first, and you can’t do the worksheets without having first read the Course Notes: 1. Read. 2. Worksheets. 3. Assignment.

Make notes from the worksheets on how each command works. What do the options used in the worksheets mean, for each command? (See the weekly List of Commands.)

Form a small study group to do the worksheets. Each person tries the example given, and you make sure you all get the same answers. Worksheets are not for hand-in; they are not worth marks; the assignments test your knowledge of the lectures and worksheets.

The worksheets are available in four formats: Open Office (ODT), PDF, HTML, and Text. Only the Open Office format allows you “fill in the blanks” in the worksheet. The PDF format looks good but doesn’t allow you to type into the blanks in the worksheet. The HTML format is crude but useful for quick for viewing online.

Do NOT open the Worksheet ODT files using any Microsoft products; they will mangle the format and mis-number the questions. Use the free Libre Office or Open Office programs to open these ODT documents. On campus, you can get a copy here: Course Introduction: Install Libre Office.

Worksheets #02 and #03 require you to have read File System and Pathnames:

Worksheets #04 and #05 require you to have read Shell GLOB patterns and Shell I/O Redirection:

Worksheet #06 is for the optional VIM Bonus Assignment (extra credit):

Worksheets prepare you for the upcoming assignments.

2.4 Upcoming testsIndexup to index

See the Week 03 Notes HTML for details on the upcoming tests.

2.4.1 Midterm Test #1 – Wednesday February 14 at 3pm in C346Indexup to index

Midterm Test #1 updated February 7 to exclude GLOB and I/O redirection

See the Week 03 Notes HTML for details.

2.4.2 Practice Test #1 and Blackboard Quiz #1Indexup to index

Practice Test #1 and Blackboard Quiz #1 updated February 7 to exclude GLOB and I/O redirection

See the Week 03 Notes HTML for details.

3 Notes from the ClassroomIndexup to index

3.1 Simplifying pathnamesIndexup to index

Rewrite each pathname as a simplified absolute pathname:

  1. /home/me/../you/../../etc/../home/me/../you/../me/../foo
  2. /home/me/../you/../../etc/../home/me/../you/../me/../..
  3. /usr/./bin/../lib/../../etc/../usr/./lib/../bin/./bar
  4. /usr/./bin/../lib/../../etc/../usr/./lib/../bin/..
  5. /../../var/./a/../../var/b/../../etc/./bar/../foo
  6. /../../var/./a/../../var/b/../../etc/./bar/..

These questions and the answers are part of Practice Test #1 in Practice Tests and Answers. Look for questions starting with “Simplify this pathname”.

3.2 Commands UsedIndexup to index

Keep a notebook with a List of Commands in it.

  • You need to write down yourself what each command does.
  • Check the updated list of commands each week.
  • I will check for this list in your lab periods.
  • Bring your notes to class! Stop wasting time looking up commands.

4 TutoringIndexup to index

Many students find that hiring a personal tutor helps them get through the first term. Financial assistance is available. See the Tutoring heading in the Course Introduction.

4.1 Network and Linux Tutor Available on Saturday morningsIndexup to index

From: Charles Nixon
Subject: Saturday Open Labs
Date: Monday, January 29, 2018 2:36 PM

Starting this Sat Feb 03 from 9am-12pm rooms T113, T114 and T111
will be opened for students to use.

A tutor (Julie Labadie 4^th semester CST) will be supervising and
available for drop in tutoring.

The Linksys SOHO routers from T111 will be signed out from Julie in T113.

Please share this with your students, the hallway schedules have
been updated with the open lab times.

5 SSH Attacks on the CLSIndexup to index

You are not paranoid if they really are out to get you! See the Week 03 Notes HTML for command pipelines to count the attacks on the CLS.

6 Locked out of the CLSIndexup to index

When you are locked out, follow the directions in the notes to get your IP address re-enabled.

Take Notes in Class
| Ian! D. Allen, BA, MMath  -  idallen@idallen.ca  -  Ottawa, Ontario, Canada
| Home Page: http://idallen.com/   Contact Improv: http://contactimprov.ca/
| College professor (Free/Libre GNU+Linux) at: http://teaching.idallen.com/
| Defend digital freedom:  http://eff.org/  and have fun:  http://fools.ca/

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