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Unit- 1 Introduction

  • Shells
  • Types of Unix Shells
  • Advantages of Shell Scripts

Unit- 2 Bash Basics

  • Initialization Files
  • Login Shells, Non- Login Shells
  • Aliases, Variables
  • Working with Variables
  • Important Internal Bash Variables
  • Command History
  • Input and Output Channels
  • Redirection to Files
  • The here Operator
  • Feeding Output to Another Process
  • Duplicating the Output with tee
  • Types of Commands
  • Quoting
  • Substitution and Expansion
  • Variable Substitution
  • Filename Expansion(File Globbing)
  • Command & Arithmetic Substitution
  • Command- Line Interpretation
  • Command Separators

Unit- 3 Basic Script Elements 1(Input, Output)

  • Program Flow Charts
  • General Considerations
  • Producing Output From a Script
  • Reading User Input
  • Simple Operation with Variables
  • Basic Strings Operation
  • Arithmetic Operations
  • Regular Expressions

Unit- 4 Basic Script Elements 2(Control Structures)

  • Simple Branching With if
  • Short Form of if
  • Multiple Branch with case
  • Iterations and Loops
  • Looping with while and until
  • Processing a List with for
  • Exiting From a Loops
  • Exiting from the Current Loop
  • Iteration with continue
  • Exiting from the Loop with break

Unit- 5 Advanced Scripting Techniques

  • Reading input with read
  • Shell Functions
  • Reading Options with getopts
  • Signal Handling with trap
  • Implementing Simple Menus with select
  • Dialog Boxes with dialog
  • Yes/No Box(yesno)
  • Message Box(msgbox)
  • Input Box(input box)
  • Text Box(text box)
  • Menu Box(menu)
  • Check List Box(checklist)
  • Radio List Box(radio list)
  • progress Meter Box(gauge)

Unit- 6 Useful utilities for Shell Scripts

  • cat
  • cut
  • date
  • grep
  • egrep
  • fgrep
  • sed
  • test
  • tr
  • awk
  • Sort
  • uniq
  • Special Variable Substitution Operators for Bash
  • Debugging Shell ScriptsSample ScriptsBottom of Form

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