IT 244: Introduction to Linux/Unix
Class 9

Today's Topics

Course Requirements

Tips and Examples


New Material

Reading Assignment

The reading assignment for this week is chapter 4 of Sobell, The Filesystem.

Homework 5

I have posted homework 5 here.

It is due this coming Sunday at 11:59 PM.

Quiz 2

Let's look at the answers to Quiz 2.


The mid-term exam for this course will be held on Tuesday, March 20th.

It will consist of 25 questions like those on the quizzes.

You will have the entire class period to work on the exam.

60% of the questions will come from the Ungraded Class Quizzes.

The last class before the exam, Thursday, March 8th, will be a review session.

You will only be responsible for the material in the Class Notes for that class on the exam.

The Mid-term is a closed book exam.

Collecting and Testing Assignments

Notifying You About Missing Work

Late Work

Tips and Examples

Testing Your Class Exercises

A Subtle Pathname Problem


Hidden Filenames

Startup Files

The . and .. Directory Entries


Absolute Pathnames

Tilde ~ in Pathnames

Relative Pathnames

Relative Pathnames in Your Current Directory

Relative Pathnames in a Subdirectory

Relative Pathnames above the Current Directory

Relative Pathnames Neither above Nor below the Current Directory

New Material

Access Permissions

Viewing Access Permissions


Using chmod with Numeric Arguments

chmod Practice


Graded Quiz