BASH (Shell Scripting)

Bash Shell Scripting members pick up a strong essential comprehension of shell builds and ideas. They figure out how to make their own shell scripts, comprehend existing scripts, and adjust these to new necessities.

Prerequisites
  • Good understanding of the main commands and user application in Linux and the Linux system administration.
BASH (Shell Scripting)

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
  • Types of Commands
  • Feeding Output to Another Process
  • Duplicating the Output with tee
  • 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
**The topics said above are only the short blueprint of the syllabus. On the off chance that you feel that we have missed any subject, you can simply come to us and learn it, or simply call us to affirm.

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