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

1. Week 03 Notes HTML – this file – Read All The Words
2. File System and Pathnames – ROOT, absolute, relative, dot, dot dot
3. Directories: ROOT, /root, HOME, /home, and current
4. Searching for and finding files by name, size, use, modify time, etc.
5. Shell GLOB patterns (wildcard pathname matching)
6. List of Commands You Should Know
7. 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
    • Naming files 5m 41s
      • Unix is case-sensitive, OSX is case-insensitive!
      • avoid special characters or blanks in Unix pathnames
    • Creating files 2m 19s
      • touch
    • Unix text editors 6m 39s
      • vi/vim, nano
      • head, tail
    • Reading files 5m 35s
      • cat, more, less
    • Reading portions of files 3m 27s
      • head, tail
    • Creating directories 2m 40s
      • mkdir
    • Moving and renaming files and directories 8m 32s
      • mv (including using ..)
    • Copying files and directories 3m 7s
      • cp
    • Deleting files and directories 3m 38s
      • rm, rmdir
    • Searching for files and directories 6m 32s
      • find using “wildcard” (GLOB) patterns - same as shell GLOB
  • 5. Commands and Programs
    • Command basics 4m 4s
      • commands are usually small programs; ways to exit from programs
    • Using the command history 8m 16s
      • shell command history is saved your .bash_history file

1.2 Assignments this weekIndex

Check the due date for each assignment and put a reminder in your agenda, calendar, and digital assistant.

• Read All The Words, Do, and then Submit via Blackboard:
  • Assignment #03 HTML – working with files: PS1 find mkdir mv cp
  • Bonus (optional) Assignment #04 HTML – the VIM text editor
  • Assignment #05 HTML will be out soon – using GLOB patterns and redirection
  • Really do Read All The Words. You don’t get a second chance to get it right.

1.3 Lab work this weekIndex

• Finish work on Worksheet #02 PDF and Worksheet #03 PDF so you can do Assignment #03 HTML.
  • The worksheets will be easier once you read File System and Pathnames.
• Read The VI (VIM) Text Editor and optionally do the bonus Assignment #04 HTML.
• For upcoming Assignment 5 do Worksheet #04 PDF – shell GLOB patterns and Aliases

1.4 Upcoming testsIndex

Read the Test Instructions (all the words) before your midterm tests.

1. First Midterm test: 45 minutes; in lecture class noon Friday in Week 5 (Feb 12)
2. Second Midterm test: 45 minutes; in lecture class noon Friday in Week 9 (Mar 18)

Tests take place in class in your one-hour lecture hour, not in your lab period.

3.1 Did not change password – CLS access revokedIndex

Five students have had their CLS accounts disabled because 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.

3.2 Fifteen minute ruleIndex

Your time as a student is valuable. If you come up against a tough problem and make no progress in fifteen minutes despite best efforts:

1. get help from a professor or lab instructor
2. get help from classmates
3. take a break
4. put it on hold and work on something else

This happens to all of us, and we need to watch out for it when it happens.

But what about when it’s midnight before the assignment is due?

Remember the “Don’t Leave Things to the Last Minute” rule!

3.3 CommandsIndex

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.

• The rmdir command will only remove an empty directory.
  • You know this from doing Section 5 of Worksheet #02 HTML.
  • How do you remove a directory and everything inside it? (You know the answer from doing the Worksheets, especially Section 5 of Worksheet #03 HTML.)

• The copy command cp will not copy directories unless you use the right option. (You know this option from doing Section 3 of Worksheet #03 HTML.)

• The copy command cp and rename/move command mv can both accept a directory as the destination, and will put all the source files into that destination directory using the source file name(s):
  • If bar is a directory, then cp foo bar creates file bar/foo
  • If bar is a directory, then mv foo bar creates file bar/foo
  • If bar is not a directory, then cp foo bar creates file bar
  • If bar is not a directory, then mv foo bar creates file bar

3.4 Student errors in submitted assignment02.txtIndex

78 of 87 students submitted the first assignment. Five people were late.

Four did not Read All The Words and did not upload the output of the marking check program.

Three people did not Read All The Words and uploaded the wrong file name:

Bad file name: assingment02.txt
Bad file name: cal.txt
Bad file name: cal.