Linux Training : Red Hat Linux Essentials

This course teaches the basic working environment of a Linux system. It introduces commonly required operations that can be performed by entering commands interactively in a command terminal, along with functions available in the K Desktop Environment (KDE) and Gnome. This course is applicable to all current variants of Linux, although the materials and labs will concentrate on Red Hat Enterprise Linux (RHEL), version 5 (all update levels).

This course is the equivalent of Red Hat course 033, with additional shell scripting topics.

Linux Training Prerequisites

This course is considered to be the basic Linux course. Experience with any interactive system is helpful.

Linux Training Course duration

This course normally requires five (5) days, approximately 50% lecture and 50% lab time.

Linux Training Course Objectives

Each participant will be able to use RHEL5 Bash Shell techniques and commands to maintain collections of files, create files using interactive editor utilities, create and execute basic command procedures, communicate with other users, and tailor the interactive environment to meet their needs.

Linux Training Course outline

Understanding the User Environment

RHEL System Overview
Process Concepts
The Graphical Environment GUIs (KDE, Gnome)
Using GUIs remotely
Customizing the Graphical Environments

Getting Started with the Command Language

Logging Into a RHEL5 System
Bash Shell Syntax Rules
Command Line Editing
Basic Network Operations

Managing Files

File Specification Syntax
Device Specifications
Directory Specifications
Regular Expressions and Special Characters
RHEL5 Commands to Manipulate Files
File Protection Mechanisms

Creating and Editing Text Files: Part 1

Using GUI-based editors (kedit, gedit)
vi Editor
- ex Editor (commands within vi)
Alternative editors (vim, nedit)

Creating and Editing Text Files: Part 2

Advanced Features of the vi Editor
abbreviations
mapping keys

Improving the User Interface

Saving History Commands
Creating Command Aliases
Redirection of Input and Output
Using Hard and Symbolic Links
Process Control Commands

Shell Script Procedures

Rules for Creating Procedures
The .bash_profile procedure
The .bashrc procedure

Print and Batch Mechanisms

The lp command and options
The at command and options
The crontab command and options

User Level Tape Operations

tar utility syntax
tar commands for product access
Using compression/uncompression commands
- gzip / gunzip

Writing Bash and Korn Shell Scripts

Bash / Korn Shell environment variables
User-defined variables
Substitution of variables
Command substitution in variables
Decision statements
Looping statement constructs
Formatting variable values for output (printf)
typesetting integer variables
Generating menus and processing with case
using and defining functions
special parameter/variable substitutions
defining and using indexed arrays

Advanced Techniques in Korn Shell Scripts

Need for Korn shell scripts
Defining and using nameref variables
Accessing variables outside of loops
defining and using associative arrays
processing options with getopts

An Introduction to Perl

Perl language and scripting background
Comparison of Shell and Perl Features
Case Study

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