1.1.1 Midterm #2 Test Scores (unadjusted) Index

97.6 92.9 90.5 85.7 83.3 83.3 81 81 78.6 76.2 73.8 73.8 73.8 73.1 71.4 71.4 69 68.6 66.7 66.3 63.6 61.9 59.5 59.5 59.5 58.9 57.1 57.1 56 52.4 52.4 50.8 50 50 50 49.1 48 47.6 47.6 47.6 46.7 45.7 42.9 42.9 42.9 41.6 41.1 40.5 40.5 40.5 38.1 38.1 37.3 35.7 35.7 34.3 34.3 33.3 31.3 31 30.6 28.6 28.3 28.3 28 27.7 26.2 25.9 25.7 25.4 23.8 22.9 21.4 21.4 20.6 16.7 16.7 16.7 16.5 11.7

1.1.2 Midterm #2 Test Scores (adjusted) Index

• Marked out of 32 instead of out of 42 - ten bonus questions.

100 100 100 100 100 100 100 100 100 100 96.9 96.9 96.9 95.9 93.8 93.8 90.6 90 87.5 87 83.5 81.2 78.1 78.1 78.1 77.3 75 75 73.5 68.8 68.8 66.7 65.6 65.6 65.6 64.5 63 62.5 62.5 62.5 61.2 60 56.2 56.2 56.2 54.6 54 53.1 53.1 53.1 50 50 49 46.9 46.9 45 45 43.8 41.1 40.6 40.2 37.5 37.1 37.1 36.8 36.4 34.4 34 33.7 33.3 31.2 30 28.1 28.1 27 21.9 21.9 21.9 21.7 15.3

• Read All The Words in the Test Instructions
• Number of people who ran over-time: 11 out of 80
• Number of people who didn’t spell their own name correctly: 9
• Number of people who didn’t enter a correct test version on this test: 27
• Number of people who didn’t enter a correct test version on both tests: 12

1.1.3 What isn’t working? Index

• Quiz 1 item: I ran out of time on the test.
  1. Yes.
  2. No.
• Quiz 2 item: I actually do know the material, but:
  1. this test didn’t test me on the things I knew well
  2. I don’t do well on any tests
  3. I didn’t expect these kinds of questions
  4. The questions were tricky.
  5. I didn’t study enough.
• Quiz 3 item: I had seen most of these questions on the practice test.
  1. Yes.
  2. No.

 

2.1.1 Assignments and Labs Index

• See your Blackboard ToDo list for all assignment due dates
• Do Lab #07 - Linux User and Group Management
• To get your Lab marks, complete your Self-Mark surveys on Blackboard.

2.2.1 Linux in the World Index

• File System “Porn”
• Unix-based operating systems serve 63.6 percent of web services
• Linux servers keep growing, Windows & Unix keep shrinking
• Amazon EC2 cloud is made up of almost half-a-million Linux servers
• Big Business, Big Linux
• Microsoft reluctantly bows to Linux users
  • “Running Linux on Azure has been a surprisingly big business-customer request.” […] The Cloud Market analysis of operating systems on the Amazon Elastic Compute Cloud (EC2) found that there were 6,556 Linux instance running compared to 1,120 Windows instances. By almost six to one, cloud users preferred Linux over Windows. […] Microsoft’s business customers are speaking, and they want Linux. If Microsoft doesn’t deliver the goods, Amazon, Red Hat, and VMware, to name three of its cloud rivals, are already happy to fully support Linux users on the cloud.

2.2.2 Data Mining - Examples of Pipes Index

• See 3.3 Examples of simple pipes in Unix Shell I/O Redirection (including Pipes)
  • Display practice test and weekly file dates from the Course Notes
  • Display the dates of the Midterm tests from the Home Page
  • Display current Ottawa weather temperature and forecast
  • Display Ottawa tomorrow weather forecast
  • Display the first top story from the BBC
  • Display the current BBC weather for Vancouver
  • Display the current Space Weather forecast for Canada
  • Display the current phase of the Moon
• shell scripts - save your common command pipelines

2.2.3 Topics: VIM, Symbolic Links, Accounts and Groups Index

• Edit File Recovery in VIM
• Symbolic Links - Soft Links - Symlinks
• Accounts and Groups - the passwd, shadow, group, and gshadow files
  • Lab07 - Linux User and Group Management
• Useful command: file - tell what kind of thing it is
• Disks, Partitions, and File Systems
  • fdisk, mkfs, mount, umount, mkswap, swapon
  • /etc/fstab

Author: 
| Ian! D. Allen  -  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/