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|colspan="1" width="22%" |'''Slides:'''<ul><li>Week 1 4 Lecture 1 Notes:<br> [[Mediahttps://github.com/ULI101/slides/raw/main/ULI101-Week14.1.pdf | PDF]] | [https://matrixgithub.senecacollege.cacom/ULI101/slides/~chris.johnsonraw/ULI101main/ULI101-Week14.1.pptx PPTX]<br/li><li>Week 1 4 Lecture 2 Notes:<br> [[Mediahttps://github.com/ULI101/slides/raw/main/ULI101-Week14.2.pdf | PDF]] | [https://matrixgithub.senecacollege.cacom/~jason.carmanULI101/slides/raw/main/ULI101-Week14.2.pptx PPTX] <br></li></ul>
| style="padding-left:15px;"|'''File Permission Concepts:'''
* [https://www.booleanworld.com/introduction-linux-file-permissions/ Introduction to File Permissions]<br><br>
'''File Permission Commands:'''<br>
* [https://ss64.com/bash/chmod.html chmod]<br>
* [https://ss64.com/bash/umask.html umask]<br><br>
# Issue the following: <span style="color:blue;font-weight:bold;font-family:courier;">~uli101/week4-check-4</span><br><br>If you encounter errors, make corrections and then re-run the checking script until you receive a congratulations message<br>and then continue with this tutorial.<br><br>
# Logout of your Matrix account, and then log-back into your Matrix account.<br><br>
# Issue the following Linux command (without arguments): <span style="color:blue;font-weight:bold;font-family:courier;">umask</span><br><br>What happened? Referring to your notes, what do you need to do to make that umask value persistent?<br><br><span style="color:red;">'''WARNING''':<br>You should be <u>extremely</u> aware of your permissions since you may perform '''assignmentsmarked work''' for <u>other</u> courses on your '''Matrix''' server.<br>You should NOT set permissions to share your work with '''same group''' or '''other group''' members (unless given '''specific permissions instructions from your course professors''' involving '''assignment submission'''). If students can have access to your directories and assignment project files, they could '''copy''' your work and thus make yourself and other student(s) that copied your assignment work<br>to be charged with '''academic dishonesty'''.</span><br><br>: After you complete Complete the Review Questions sections to get additional practice, then work on your '''online assignment 2'''<br>and complete the sections '''1''' and '''2''' labelled: '''Practice Using The vi Text Editor''' and '''Permissions''' respectively.<br><br>
= LINUX PRACTICE QUESTIONS =
The purpose of this section is to obtain extra practice to help with your assignment #1, quizzes, your midterm, and your final ezam.
Here is a link to the MS Word Document of ALL of the questions displayed below but with extra room to answer on the document to
simulate a quiz:
https://ictgithub.senecacollege.cacom/ULI101/labs/~murray.saulraw/uli101main/uli101_week4_practice.docx
Your instructor may take-up these questions during class. It is up to the student to attend classes in order to obtain the answers to the following questions. Your instructor will NOT provide these answers in any other form (eg. e-mail, etc).
'''Review Questions:'''
# Write a simple chart to show which values are represented for letter '''A - F''' for a hexadecimal number.
# How many '''binary''' digits does 1 octal digit represent?
# How many '''binary''' digits does 1 hexadecimal digit represent?[[Image:number-conversion-chart.png|right|450px|thumb|]]
# Use '''manual numbering conversion''' to complete the table displayed to the right.
