RH033 Essentials


UNIX History.

UNIX Principles.

GNU Project / FSF.

GPL - GNU General Public License.

Linux Origins.

Why Linux?.

Red Hat Enterprise Linux.

Recommended Hardware Specifications.

Local Logins.

Virtual Consoles.

The Xorg GUI Framework.

The Xorg Graphical Environments.

Starting Xorg.

Changing Your Password.



Unit 2 - Running Commands and Getting Help



Running Commands.

Some Simple Commands.

Getting Help.

The whatis Command.

The --help Option.

Reading Usage Summaries.

The man Command.

Navigating man Pages.

The info Command.

Navigating info Pages.

Extended Documentation.

Red Hat Documentation.

Hands-on lab: Getting Help with Commands.


Unit 3 - Browsing the Filesystem



Linux File Hierarchy Concepts.

Some Important Directories.

Other Important Directories.

Current Working Directory.

File and Directory Names.

Absolute Pathnames.

Relative Pathnames.

Changing Directories.

Listing Directory Contents.

Copying Files and Directories.

Copying Files and Directories: The Destination.

Moving and Renaming Files and Directories.

Moving and Renaming Files and Directories: The Destination.

Creating and Removing Files.

Creating and Removing Directories.

Using Nautilus.

Moving and Copying in Nautilus.

Determining File Content.

Viewing an Entire Text File.

Viewing Text Page by Page.

Hands-on lab: Browsing the Filesystem.


Unit 4 - The bash Shell



bash Introduction.

bash Heritage and Features.

Command Line Shortcuts.

Command Line Shortcuts.

Command Line Shortcuts.

More History Tricks.

Command Line Expansion.

Command Line Expansion.

Command Line Expansion.

Protecting from Expansion.

Protecting from Expansion.

Command Editing Tricks.


Hands-on lab: Exploring the Bash Shell.


Unit 5 - Standard I/O and Pipes



Standard Input and Output.

Redirecting Input and Output.

Redirecting Output.

Redirecting Standard Output.

Overwriting vs Appending.

Redirecting Standard Error.

Redirecting Both Standard Output and Error.

Redirecting Input.

Using Pipes To Connect Processes.

Useful Pipe Targets.


Hands-on lab: Standard I/O and Pipes.


Unit 6 - Users, Groups, and Permissions



The Linux Security Model.



The root user.

Linux File Security.

Permission Types.

Examining Permissions.

Interpreting Permissions.

Examining Directories.

Linux Process Security.

Changing Permissions - Symbolic Method.

Changing Permissions - Numeric Method.

Changing Permissions - Nautilus.

Hands-on lab: File Permissions.


Unit 7 - vi and vim Editor Basics



Overview of vi and vim.

Starting vi and vim.

Three Modes of vi and vim.

Cursor Movement.

Cursor Movement.

Entering Insert Mode.

Leaving Insert Mode: Esc.

Change, Delete, and Yank.

Put (paste).

Undoing Changes.

Searching for Text.

Command-Mode Tricks.

Saving and Exiting: ex mode.

Hands-on lab: vi and vim Editor Basics.


Unit 8 - The Linux Filesystem In-Depth



Partitions and Filesystems.



Inodes and Directories.

cp and inodes.

mv and inodes.

rm and inodes.

Symbolic (or Soft) Links.

Hard Links.

The Seven Fundamental Filetypes.

Checking Free Space.

Removable Media.

Mounting CDs and DVDs.

Mounting USB Media.

Mounting Floppy Disks.

Formatting Floppy Disks.

Why Archive Files?.

Creating an Archive.

Inspecting Archives.

Extracting an Archive.

Why Use File Compression?.

Compression Utilities.

Using Compression.

Compressing Archives.

Hands-on lab: The Linux Filesystem.


Unit 9 - Configuring the Bash Shell



Configuring the Bash ShellVariables.

Common Local Variables.

The PS1 Local Variable.


Other Shell Configuration Methods.

Configuring Commands: Environment Variables.

Common Environment Variables.

The TERM Environment Variable.

The PATH Environment variable.

How bash Expands a Command Line.

Shell Startup Scripts.

Login Shells.

Startup Scripts: Order of Execution.



~/.bash_profile and ~/.bashrc.


Hands-on lab: Configuring the Bash Shell.


Unit 10 - Advanced Topics in Users, Groups and Permissions



User and Group ID Numbers.

/etc/passwd, /etc/shadow, and /etc/group files.

System Users and Groups.

Changing Your Identity.

User Information Commands.

Default Permissions.

Special Permissions.

Special Permissions for Executables.

Special Permissions for Directories.

Hands-on lab: Switching Users and Setting a Umask.

Unit 11 - Advanced vi/vim and Printing



File Repositioning.


ex mode: Search and Replace.

Visual Mode.

Advanced Reading and Saving.

Using multiple "windows".

Configuring vi and vim.

Expanding your Vocabulary.

Printing in Linux.

Printing Commands.

Printing Utilities.

Hands-on lab: Advanced Uses of the vi and vim Editors.

Unit 12 - Introduction to String Processing.






wc (word count).




Other String Processing Tools.

Version Comparison with diff.

Spell Checking with aspell.

Hands-on lab: Introduction to String Processing.

Unit 13 - String Processing with Regular Expressions.



Pattern Matching with Regular Expressions.

Wildcard Characters.

Character Classes.



The .