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
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- 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
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