Red Hat Linux Essentials

Linux Training Overview

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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