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The UNIX operating system is made up of three parts; the kernel, the shell and the programs.

UNIX is an operating system which was first developed in the 1960s, and has been under constant development ever since. By operating system, we mean the suite of programs which make the computer work. It is a stable, multi-user, multi-tasking system for servers, desktops and laptops.

UNIX systems also have a graphical user interface (GUI) similar to Microsoft Windows which provides an easy to use environment. However, knowledge of UNIX is required for operations which aren't covered by a graphical program, or for when there is no windows interface available, for example, in a telnet session.

Topics Covered in this App are Listed Below

Unix - Getting Started

File Management

Directory Management

File Permission / Access Modes

Environment

Unix Basic Utilities - Printing, Email

Pipes and Filters

Processes Management

Network Communication Utilities

The vi Editor Tutorial

Using Shell Variables

Special Variables

Using Shell Arrays

Shell Basic Operators

Shell Decision Making

Shell Loop Types

Shell Loop Control

Shell Substitution

Shell Quoting Mechanisms

Shell Input/Output Redirections

Shell Functions

Shell Manpage Help

Regular Expressions with SED

File System Basics

User Administration

System Performance

System Logging

Signals and Traps