Certificate Authentication

Introduction

• Objectives
• Course Schedule
• Course Introductions
• Pre-requisites
• Bibliography
• Delegate Responsibilities
• Course Summary

Review of Basics - optional

• Files
• Directories and Processes
• Displaying Directories - ls
• Getting Help - man
• Displaying Files - cat, more
• Simple Commands
• Piping - using | symbol
• Redirection - using > symbol
• Redirection - using >> symbol
• Redirecting Input - using < symbol
• Redirecting Errors
• Using /dev/null
• Foreground Jobs
• Background Jobs - &
• Stopping Jobs - kill
• Special Files - . and ..
• The Command Prompt - PS1
• Creating Aliases
• Using Aliases
• Command history
• Command Line Edit - using Arrow Keys
• Command Line Edit - using vi
• Customising the Shell
• The Home Directory - HOME
• The Working Directory - pwd
• Changing Directories - cd
• Make Directory - mkdir
• Remove Directory - rmdir
• Interactive Copy - cp -i
• Interactive Move - mv -i
• Interactive Remove - rm -i
• Removing Directories - rm -r
• Wild Cards - File Name Generation
• Word count - wc
• Finding Files - find
• Finding Text in Files - grep, sort, cut, uniq, tr
• Changing Permissions - chmod

Shell Programming

• Creating Shell Scripts
• Testing the Command
• Creating the Script File
• Adding Execute Permissions
• Testing the Script
• Running the Script - time
• Running the Script - dot
• Running the Script - exec
• Running the Script - ksh
• Debugging the Script
• Passing Parameters
• The read Command
• Using read in Scripts
• Choosing the Shell
• Tidying The Output
• Suppressing Input - stty

Special Characters and Variables

• Quotation Marks
• Quoted Strings - ", '
• Escape Character - *
• Quoted Strings - `
• Using $(...)
• System Variables - set
• Other Special Variables
• User Variables
• User Variables - unset
• Variables in Scripts
• Typeset Command
• Integer Variables
• Special Constructs

Creating Menus

• Conditions - case
• Creating a Menu
• Iteration - while, until
• Holding the Output - sleep
• Holding the Output - dummy read
• Ending the Script
• Ending the Loop
• Hidden Option - forking a shell
• Trapping Interrupts - trap
• More on Interrupts
• Highlighting Text- tput
• Positioning the Cursor - backtab \b
• Korn Shell Menu

Selection

• Conditional Testing
• Testing File Attributes
• Testing File Permissions
• Multiple Tests - Nested ifs
• Multiple Tests - elseif
• The NOT Condition
• Multiple Conditions in One Test
• Testing Strings
• Using Square Brackets
• Avoiding Null Input
• Testing Numbers
• More on case
• Displaying Variables
• Placing Spaces
• Testing Commands

Iteration, Looping

• Computations - let
• Iteration - while, until
• Infinite Loop
• Iteration - for
• More than 9 Parameters - shift

Sub-scripts and Functions

• Local and Global Variables
• Sub-scripts
• Export Command
• Exit Status
• Aliases
• Functions
• Useful Functions
• Return Status
• Manipulating Functions
• Functions in Scripts

Advanced Commands

• Debugging - set
• Setting - set
• Merging Files - join
• Merging Files - paste, basename and dirname
• Job Control - jobs
• Regular Expressions
• Global Regular Expression Printer - grep
• Expression grep - egrep
• Fast grep - fgrep
• Computations - expr
• Computations – bc, eval Command,
• Argument Processing
• getopts Command
• Using Arrays

Advanced Edit – vi & sed

• vi - Mapping Key Combinations
• Mapping Control Keys
• Using Abbreviations
• Editing Many Files
• Regular Expressions
• Global Insert
• Here document,
• Batch Stream Editor - sed, sed delete, -d, sed print, -p, sed suppress, -n, sed quit, -q, sed file, -f, sed Multiple Input, sed
• Find and Replace
• sed Example

Text File Processing - awk

• The awk Programming Tool
• Pattern Matching
• Regular Expressions
• Comparison Patterns
• Compound Patterns
• Range Patterns
• Special Patterns
• Built-in Functions
• Troubleshooting awk Scripts
• Passing Parameters
• Using Contains
• printf Function
• Computations
• Functions
• substr
• length
• Action Statements
• Control Flow Statements
• Arrays
• Arrays with for Loops
• awk Examples