UNIX Introduction

This Unix Operating System training course introduces the delegate to the main concepts of the UNIX Operating System. The most commonly used unix commands and utilities are described in detail as are the command line wildcard and redirection facilities. The mechanisms by which a user acquires a login environment are discussed and the main features of the Korn/Posix/Bash Shells are introduced.

Exercises and examples are used throughout the course to give practical hands-on experience with the techniques covered.

The delegate will learn and acquire skills as follows:

• The history of the UNIX and Linux operating systems
• Navigating and creating files and directories within the UNIX filesystem
• Navigating and searching manual pages
• Structuring commands
• File and directory management commands
• Shell redirection and pipe facilities
• Editing text files using the vi / Vim editor
• Customising the vi / Vim environment
• Searching and replacing text and regular expressions (regex)
• Recalling and editing commands with the Bash and Korn Shell
• Setting and changing file and directory permissions
• Creating hard and symbolic links
• Filtering text with cut and Awk
• Monitoring and killing processes and process priorities
• Configuring the Shell environment and variables
• The find and locate commands
• Further basic commands

Anyone who needs to understand and use the UNIX Operating System.

There are no formal pre-requisites for the UNIX Introduction course, although an understanding of and exposure to information technology is advantageous.

To provide the skills needed to work productively in the UNIX environment.

There are no formal pre-requisites for this UNIX Introduction training course, although an understanding of and exposure to information technology and an understanding of operating systems is required.

• UNIX Shell Programming
• Oracle SQL
• Linux Networking

• Course technical content is subject to change without notice.
• Course content is structured as sessions, this does not strictly map to course timings. Concepts, content and practicals often span sessions.

Course Contents - DAY 1

Course Introduction

• Administration and Course Materials
• Course Structure and Agenda
• Delegate and Trainer Introductions

Session 1: INTRODUCTION TO THE UNIX OPERATING SYSTEM

• A brief history of UNIX / Linux
• The UNIX / Linux kernel
• The UNIX / Linux file system structure
• File and directory management commands
• Absolute vs Relative Pathnames
• Further basic commands
• Exercise: Navigating the file system

Session 2: BASIC COMMANDS

• Command line syntax
• Basic file handling commands
• Basic Directory handling commands
• Filename wildcard characters
• Exercise: Manipulating files and directories

Session 3: REDIRECTION AND PIPES

• Input and Output redirection
• Redirecting errors
• Piping commands
• Exercise: Using redirection and pipe facilities

Course Contents - DAY 2

Session 4: INTRODUCTION TO THE vi/Vim EDITOR

• Overview of the vi/Vim editor
• The language of vi
• Undoing and Redoing changes
• Input Mode and Last Line Mode
• Further vi functions
• Executing commands within vi / Vim
• Customising the vi / Vim Environment
• Getting Help
• Exercises: Using the vi editor

Session 5: SEARCHING AND REPLACING TEXT

• Searching and replacing text using the vi editor
• Using regular expressions (regex)
• Using sed for search and replace
• Searching for text with grep, egrep and fgrep
• Exercises: Searching and Replacing Text

Session 6: RECALLING AND EDITING COMMANDS

• Overview
• The bash shell
• The korn shell
• Exercises: Recall and Edit Commands

Session 7: FILE PERMISSIONS AND ACCESS CONTROL

• Users and user groups
• File access permissions
• Changing file attributes
• Switching users and user groups
• Linking files
• Exercise: Setting and access permissions

Course Contents - DAY 3

Session 8: FILTERING TEXT

• Overview
• The cut command
• An introduction to awk
• The nl command
• Exercises: Filtering Text

Session 9: PROCESSES

• What is a process?
• Monitoring processes
• Killing processes
• Background processes
• Job Control
• Grouping commands
• Exercise: Monitoring and controlling processes

Session 10: THE USER ENVIRONMENT

• Customising the .profile or .bash_profile
• Customising the .kshrc or .bashrc
• Exercise: Setting up an environment

Session 11: MORE BASIC COMMANDS

• The find command
• Using xargs command
• The locate command
• The df command
• The cut command
• The sort command
• Finding duplicate content
• The finger and pinky commands
• Exercise: More Basic Commands