Upon completing this course, students will be able to:

• Understanding the shell structure and its environment
• Learning the key features and fundamentals of bash scripting
• Carrying out arithmetic operations in a shell script
• Creating interactive scripts
• Incorporating different functionalities including flow control and decision making
• Understanding and implementing various functions

Module 1:Bash and Bash scripts
Lesson

• Common shell programs
• General shell functions
• Shell types
• Advantages of the Bourne Again Shell
• Bash is the GNU shell
• Features only found in bash
• Executing commands
• General
• Shell built-in commands
• Executing programs from a script
• Building blocks
• Shell building blocks
• Developing good scripts
• Properties of good scripts
• Structure
• Terminology
• A word on order and logic
• An example Bash script

Module 2:Writing and debugging scripts
Lesson

• Creating and running a script
• Writing and naming
• Executing the script
• Script basics
• Debugging Bash scripts
• Debugging on the entire script
• Debugging on part(s) of the script

Module 3: The Bash environment

Lesson

• Shell initialization files
• System-wide configuration files
• Individual user configuration files
• Changing shell configuration files
• Variables
• Types of variables
• Creating variables
• Exporting variables
• Reserved variables
• Special parameters
• Script recycling with variables
• Quoting characters
• Escape characters
• Single quotes
• Double quotes
• ANSI-C quoting
• Locales
• Shell expansion
• General
• Brace expansion
• Tilde expansion
• Shell parameter and variable expansion
• Command substitution
• Arithmetic expansion
• Process substitution
• Word splitting
• File name expansion
• Aliases
• What are aliases?
• Creating and removing aliases
• More Bash options
• Displaying options
• Changing options

Module 4: Regular expressions

Lesson

• Regular expressions
• What are regular expressions?
• Regular expression metacharacters
• Basic versus extended regular expressions
• Examples using grep
• What is grep?
• Grep and regular expressions
• Pattern matching using Bash features
• Character ranges

Module 5. The GNU sed stream editor

Lesson

• Introduction
• What is sed?
• sed commands
• Interactive editing
• Printing lines containing a pattern
• Deleting lines of input containing a pattern
• Ranges of lines
• Find and replace with sed
• Non-interactive editing
• Reading sed commands from a file
• Writing output files

Module 6: The GNU awk programming language

Lesson

• Getting started with gawk
• What is gawk?
• Gawk commands
• The print program
• Printing selected fields
• Formatting fields
• The print command and regular expressions
• Special patterns
• Gawk scripts
• Gawk variables
• The input field separator
• The output separators
• The number of records
• User defined variables
• More examples
• The printf program

Module 7: Conditional statements

Lesson

• Introduction to if
• General
• Simple applications of if
• More advanced if usage
• if/then/else constructs
• if/then/elif/else constructs
• Nested if statements
• Bash Guide for Beginners
• Boolean operations
• Using the exit statement and if
• Using case statements
• Initscript example

Module 8: Writing interactive scripts

Lesson

• Interactive or not?
• Using the echo built-in command
• Catching user input
• Using the read built-in command
• Prompting for user input
• Redirection and file descriptors
• File input and output

Module 9: Repetitive tasks

Lesson

• The for loop
• How does it work?
• Examples
• The while loop
• What is it?
• Examples
• The until loop
• What is it?
• Example
• I/O redirection and loops
• Input redirection
• Output redirection
• Break and continue
• The break built-in
• The continue built-in
• Examples
• Making menus with the select built-in
• General
• Submenus
• The shift built-in
• What does it do?
• Examples

Module 10: More on variables

Lesson
Types of variables

• General assignment of values
• Using the declare built-in
• Constants
• Array variables
• Creating arrays
• Dereferencing the variables in an array
• Deleting array variables
• Examples of arrays
• Operations on variables
• Arithmetic on variables
• Length of a variable
• Transformations of variables

Module 11: Functions

Lesson

• Introduction
• What are functions?
• Function syntax
• Positional parameters in functions
• Displaying functions
• Examples of functions in scripts
• Recycling
• Setting the path
• Remote backups

Module 12: Catching signals

LeSignals

• Introduction
• Usage of signals with kill
• Traps
• General
  How Bash interprets traps
• More examples

Not Available

• Minimum batch size required for batch is 10 participants in the this course.
• The RST Forum reserves the right to cancel/postpone the class.
• Course schedule will be provided before commencement of the course.
• Certificate of participation will be awarded to participants with a minimum 90% attendance.
• All attendees are to observe the Copyright Law on intellectual properties such as software and courseware from respective vendors.
• The RST Forum reserves the right to include external participants in the program either for the entire course or individual courses.
• The RST Forum reserves the right to change/alter the sequence of courses. RST FORUM published Book would be given at 50% discounted rate to the forum students.