% CST8207 Week 07 Notes -- Disk usage, quotas, finding inodes, symbolic links, modes, permissions, chmod % Ian! D. Allen -- -- [www.idallen.com] % Winter 2016 - January to April 2016 - Updated 2016-10-16 21:02 EDT - [Course Home Page] - [Course Outline] - [All Weeks] - [Plain Text] Readings, Assignments, Labs, Tests, and ToDo ============================================ Read (at least) these things (All The Words) -------------------------------------------- 1. [Week 07 Notes HTML] -- this file -- **Read All The Words** 2. [Unix/Linux Disk Usage, Hard Links, Quotas, Finding Inodes] 3. [Symbolic Links] 4. [Unix Modes and Permissions, whoami, id, groups, ls -l, chmod] 5. [Permissions masking with umask, chmod, 777 octal permissions] 6. [List of Commands You Should Know] 7. [Linux and Sysadmin News in the World] 8. [Video Tutorials on Lynda.com] -- tagged by week number - Create your [lynda.com] account and watch these sections of [Unix for Mac OS X Users] - these videos are for *all* Unix/Linux students, not just Mac OSX users - **3. Working with Files and Directories** - Hard links 5m 30s - Symbolic links 6m 36s - **4. Ownership and Permissions 34m 58s** - Who am I? 4m 3s - `whoami` - Unix groups 1m 52s - `groups` - File and directory ownership 6m 41s - `ls -la` - File and directory permissions 4m 27s - `rwx` notation - **5. Commands and Programs** - Disk information commands 6m 8s - df, du, Assignments this week --------------------- 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. - Read All The Words, Do, and then Submit via Blackboard: - Bonus (optional) [Assignment #04 HTML] -- the VIM text editor - Bonus (optional) [Assignment #06 HTML] about Midterm #1 - There will be a checking program available to check your file format for this bonus assignment, but only people who Read All These Words will know about it. Wrong format means no marks. - [Assignment #07 HTML] -- start-up files, environment, search PATH, quoting, hard and soft links, disk usage - [Assignment #08 HTML] -- setting permissions, mode, `umask` - Really do **Read All The Words**. You don't get a second chance to get it right. Lab work this week ------------------ - Read [The VI (VIM) Text Editor] and optionally do the bonus [Assignment #04 HTML]. - Do Bonus (optional) [Assignment #06 HTML] about Midterm #1 - There will be a checking program available to check your file format for this bonus assignment, but only people who Read All These Words will know about it. Wrong format means no marks. - [Assignment #07 HTML] -- start-up files, environment, search PATH, quoting, hard and soft links, disk usage - [Assignment #08 HTML] -- setting permissions, mode, `umask` Upcoming tests -------------- Read the [Test Instructions] (all the words) before your midterm tests. Put these dates into your phone! - **Second Midterm test:** 45 minutes; in lecture class noon Friday in Week 9 (Mar 18) - **Final Exam:** 8am to 11am (three hours) in C144 Wednesday April 27 in Week 15 - Three Hours! Take a bathroom break before you start the exam. Tests take place in class in your 50-minute lecture period, not in your lab period. Each midterm test is 45 minutes long and contains approximately 45 multiple-choice questions similar to those found in [Practice Tests and Answers]. The Final Exam is three hours long. Take a washroom break before you start. ### Midterm Test #2 -- March 18 - Midterm #2 takes place at noon on Friday, March 18 (Week 9) in your scheduled lecture hour (not in your lab period). - For full marks, you must read the [Test Instructions] before the test for important directions on how to enter your name, answers, your lab (not lecture) section number, and the test version number on the question sheet and the mark-sense forms. - There may be more questions on the test than you can answer in the time allowed; answer the ones you know, first. - A set of practice questions and answers for the second midterm test is posted: [Practice Tests and Answers]. ### Quizzes: Midterm #2 Quiz - Blackboard has some quizzes taken randomly from the practice test. This second quiz set is one of several marked quizzes in this course. The quizzes are part of your course grade. See the [Week 04 Notes HTML] for how to earn all your quiz marks. - See the [Course Outline] for the mark weight of all the quizzes. From the Class Notes link on the Course Home Page ================================================= - [Course Home Page] - [All Weeks] - Review last week. Did you do everything assigned last week? From the Classroom Whiteboard/Chalkboard ======================================== - **Take notes in class!** Your in-class notes would go here. - Are you making notes from the worksheets on how each command works? - What do the options used in the worksheets mean, for each command? - Don't copy and use options that you don't understand! - Bring your notes to class! Stop wasting time looking up commands. - Know (for the assignment) the three commands that are [directory operations] that manipulate file names; they don't touch the file data and don't need any permissions on the file data. Fifteen minute rule ------------------- Your time as a student is valuable. See the [Week 03 Notes HTML]. Commands -------- Keep a notebook with a [List of Commands][List of Commands You Should Know] in it. - You need to write down yourself what each command *does*. - I will check for this list in your lab periods. - Check the updated list of commands each week. Locked out ---------- The CLS will lock out your IP address if you can't type your own userid correctly. If this happens, you have to follow the posted directions to have me unlock your IP address. You can change to another IP address. You can always come to school where no IP addresses are locked out. ![Take Notes in Class] -- | 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/ [Plain Text] - plain text version of this page in [Pandoc Markdown] format [www.idallen.com]: http://www.idallen.com/ [Course Home Page]: .. [Course Outline]: course_outline.pdf [All Weeks]: indexcgi.cgi [Plain Text]: week07notes.txt [Week 07 Notes HTML]: week07notes.html [Unix/Linux Disk Usage, Hard Links, Quotas, Finding Inodes]: 457_disk_usage.html [Symbolic Links]: 460_symbolic_links.html [Unix Modes and Permissions, whoami, id, groups, ls -l, chmod]: 500_permissions.html [Permissions masking with umask, chmod, 777 octal permissions]: 510_umask.html [List of Commands You Should Know]: 900_unix_command_list.html [Linux and Sysadmin News in the World]: 950_linux_world.html [Video Tutorials on Lynda.com]: 910_lynda_index.html [lynda.com]: http://algonquincollege.com/onlineresources/mobileStudent/lynda.htm [Unix for Mac OS X Users]: http://www.lynda.com/Mac-OS-X-10-6-tutorials/Unix-for-Mac-OS-X-Users/78546-2.html [Assignment #04 HTML]: assignment04.html [Assignment #06 HTML]: assignment06.html [Assignment #07 HTML]: assignment07.html [Assignment #08 HTML]: assignment08.html [The VI (VIM) Text Editor]: 300_vi_text_editor.html [Test Instructions]: 000_test_instructions.html [Practice Tests and Answers]: PRACTICE_TEST_README.html [Week 04 Notes HTML]: week04notes.html [directory operations]: 455_links_and_inodes.html [Week 03 Notes HTML]: week03notes.html [Take Notes in Class]: data/remember.jpg "Take Notes in Class" [Pandoc Markdown]: http://johnmacfarlane.net/pandoc/