2.1 Read (at least) these things (All The Words)Index

1. Week 11 Notes HTML – this file – Read All The Words
2. Shell Control Structures – if, then, else, test, [...]
3. List of Commands You Should Know
4. Linux and Sysadmin News in the World
5. Video Tutorials on Lynda.com – tagged by week number

2.2 Assignments, Quizzes, and Lab work this weekIndex

Reminder: There are now two quizzes that you need to complete on Blackboard as part of your term Quiz mark. A third quiz will be posted before the Final Exam. The Quizzes are not optional; see the Course Outline.

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.

• Review last week. Did you do everything assigned last week?
• Read The VI (VIM) Text Editor and optionally do the bonus Assignment #04 HTML.
• Assignment #08 HTML – setting permissions, mode, umask
  • Do the worksheet first on Linux file system permissions (modes):
  • Worksheet #08 ODT – use Open Office or Libre Office to complete this worksheet
  • Worksheet #08 PDF – pretty version
  • Worksheet #08 HTML – quick web online version (not pretty)
• Bonus (optional) Assignment #09 HTML about Midterm #2
  • There is 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. Do not save or submit the output of this checking program!

• Assignment #10 HTML – tar, processes, syslog, crontab, at, mail, shell script

• Really do Read All The Words. You don’t get a second chance to get it right.

4.1 Commands UsedIndex

• Keep a notebook with a List of Commands 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.
  • Bring your notes to class! Stop wasting time looking up commands.
• 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!

4.2 Finding world-writable files in your accountIndex

The assignment Checking Programs may issue this message:

Number of world-writable pathnames in abcd0001 account: 1
   ERROR: Sysadmin do not create files that anyone can overwrite.
   ERROR:       See "Examples of uses of find" to find these files.
   ERROR(-1): Fix the permissions on these files

Don’t create files or directories that anyone (“other”) can write, except the few required ones in the one Assignment #08 HTML head directory!

You must look at all the files in your account to try to find these files or directories that you have created with “other” write permissions. You can find the files the hard way, using cd and ls, or you can do it the easy way using a recursive command:

• To learn how to find these world-writable files in your account, first use a command to search for the files that contain the text world-writable in all the course notes. The course notes have an example showing what command to use to find world-writable files.
• To search the course notes for a text string, re-read section 4.5 of Assignment #05 HTML, especially item #8 about searching for the text string Filezilla in all the course notes.
• You will be able to identify which course notes web page you should read to find the example showing how to find world-writable files.
• Fix the permissions on these files. Remove write permission for “other”.