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

1. Week 04 Notes HTML – this file – Read All The Words
2. Shell I/O Redirection – stdin, stdout, stderr, and Pipes
3. Selecting Fields with awk – extracting fields from input lines and columns from input files using awk and $1 and $NF
4. Practice Tests and Answers – practice questions for your midterm test.
5. Next week: Shell Variables – quoting, local and environment variables, USER HOME SHELL PATH TERM $$
6. List of Commands – Command names you should know, listed by week
7. Video Tutorials on Lynda.com – tagged by week number
8. Linux and Sysadmin News in the World

• 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
    • Searching for files and directories 6m 32s
      • find using “wildcard” (GLOB) patterns - same as shell GLOB
    • Unix text editors 6m 39s
      • vi/vim, nano
      • head, tail
    • Naming files 5m 41s
      • use quotes to surround names with blanks or special characters
  • 6. Directing Input and Output 20m 39s
    • Standard input and standard output 1m 24s
    • Directing output to a file 4m 13s
    • Appending to a file 2m 44s
    • Directing input from a file 5m 28s
    • Piping output to input 4m 40s
    • Suppressing output 2m 10s

1.2 Assignments this weekIndex

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 All The Words, Do, and then Submit via Brightspace:
  • Assignment #02 HTML – (extended due date) Course Linux Server simple commands
  • Assignment #03 HTML – working with files and pathnames: PS1 find mkdir mv cp rm touch file
    • Remember to set your PS1 prompt every time you log in to the CLS.
  • OPTIONAL: Read The VI (VIM) Text Editor and optionally do the bonus Assignment #04 HTML for extra credit.
  • Coming soon: Assignment #05 HTML – using GLOB wildcard patterns, selecting files using GLOB, redirection and pipes. This assignment requires reading Shell GLOB patterns and Shell I/O Redirection and then doing Worksheet #04 HTML and Worksheet #05 HTML.
  • Really do Read All The Words. You don’t get a second chance to get it right.

1.3 Lab work this weekIndex

• Finish the readings, worksheets, and Assignment #03 HTML from last week.
• Complete and save the ODT or PDF versions of Worksheet #04 HTML and Worksheet #05 HTML in preparation for Assignment #05 HTML
  • These worksheets require you to understand Finding Files, Shell GLOB patterns (wildcard pathname matching) and Shell I/O Redirection (including Pipes).
• Coming soon: Assignment #05 HTML – GLOB wildcard patterns, selecting files using GLOB, redirection and pipes
  • This assignment requires you to understand the material in the web pages and Worksheets 4 and 5.
• OPTIONAL: Read The VI (VIM) Text Editor and optionally do the bonus Assignment #04 HTML.

1.4 Upcoming testsIndex

Follow this link to see all your upcoming Quizzes and Tests. The dates are also posted on the Course Home Page and on Brightspace CST8207.

For full marks, read the Test Instructions (all the words) before your midterm tests.

1. First Midterm test: 45 minutes; in your one-hour lecture class in Week 6.
2. Second Midterm test: 45 minutes; in your one-hour lecture class in Week 10.

Tests take place in your one-hour lecture class, not in your lab period. You must write the test in the lecture class in which you are registered.

2.1 Simplifying pathnamesIndex

You will see lots of these: Rewrite each pathname as a simplified absolute pathname with no . or .. references:

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”.

2.2 Draw file system diagramsIndex

See last week’s note about drawing file system diagrams: Week 03 Notes HTML

2.3 Did not change password – CLS access revokedIndex

Students will have their CLS accounts disabled if they have not changed their default password. (I do not want people breaking into my machine because of you.)

See my online timetable for how to make an office appointment to see me if you want your account back.

2.4 Commands UsedIndex

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.

• 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!
• Using GLOB patterns as -name arguments to find
  • Remember to quote the find GLOB patterns to hide them from the shell!
  • GLOB patterns are NOT needed in Assignment 3. See Assignment 5.
• About ls -d: The man page says “list directories themselves, not their contents”. It doesn’t say “list only directories;, do not list files”. If you give a file and a directory to ls -l -d, you will get the file name and the directory name in the output. If you give a file and a directory to ls without -d, you will get the file name and the contents of the directory (not the directory name itself) in the output. See the difference? The -d shows the directory itself, not what is in the directory.

4.1 Network Tutor Available on Saturday morningsIndex

See your Networking course announcements.