Unix Shell Scripting

Highlights

Course Stats

Course Outcome

• Writing simple scripts to enhance basic command output
• Using the various shell quoting mechanisms appropriately
• Manipulating shell variables and user-defined variables in scripts
• Implementing conditional execution facilities
• Using the shell's built-in loop constructs where appropriate
• Writing scripts to trap user interrupts
• Developing menu-driven shell scripts
• Extract data from any HTML/XML file to be used within the script
• Display values using ‘awk’ in the Shell Script
• Effectively use ‘While’, ‘Until’, or ‘For’ loops according to the need of the script
• Schedule jobs using ‘Crontab’ or ’at’
• Using  ‘if-else’ statement or ‘Nested if’ statements
• Store or assign a value of out[put to a variable
• Set or Unset any variable and run a command substitution to any variable.
   

Project

Course Objectives

• Work confidently in Unix/Linux 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
• Write shell scripts to automate various tasks
• Master the basics of Linux administration, with specific focus on Shell
• Grown familiarity with different environment variables of Linux Operating Systems.
• Prepare scripts to automate common tasks in Linux system.
• Ability to create report and online report using CGI and MySQL queries.
• Guard against malicious intents against the Linux Operating System.

Pre requisites

Learn Why

Course Introduction

• Administration and Course Materials
• Course Structure and Agenda
• Delegate and Trainer Introductions

Linux Command Review

• Basic Unix commands
• General commands
• File and directory handling commands
• Filename generation characters
• I/O Redirection features
• Other commands
   

Getting Started

• What is a shell script?
• Development guidelines
• Creating and editing shell scripts
• Naming and storing shell scripts
• Executing shell scripts
• Exercise: Write a simple shell script
   

Using Vaiables

• Environment variables
• Local variables
• Assigning values to variables
• Assessing variable values
• Using quotes
• Delimiting variable names
• Echo control sequences
• Exercise: Add variables to a script
   

Integer Arithetic

• Using the expr command
• Using the (( )) notation
• Exercise: Add integer arithmetic to a shell script
   

Handling Run Time Data

• The read command
• Command line arguments
• Exercise: Writing a generic shell script
• Exercise: Writing an interactive shell script

Condition Execution

• The if statement
• The test command
• Other test notations
• Default and substitute variables
• Exit status codes
• Exercise: Adding validation to previous scripts
   

Loop Constructs

• The while loop
• The until loop
• The for loop
• The while true and until false loops
• Loop control commands
• Exercise: Enhancing the previously written scripts
• Exercise: Writing a script to copy files using a 'for' loop
• Exercise: Writing a script to generate numbers with the 'while' loop
   

Multi-Branch Decisions

• The case statement
• Menu driven applications
• Exercise: Developing and writing a menu system

Functions

• What is a function?
• Syntax
• Examples
• Exercise: Add a function to a script
   

Interrupt Handling

• Interrupt signals
• Trapping interrupts
• Exercise: Adding traps to the menu script
• ADDITIONAL FEATURES AND FACILITIES
• The exec commands
• The includes notation
• More about loops
• Arrays
• Here Documents
• Exercise: Create a here script
   

Who should join this course?

Developers/Testers who want to accelerate their careers- Analytics Managers who are subject matter experts, or/and are leading a team of analysts - Individual contributors in the field of Enterprise Business Intelligence.

Post training will you issue a certificate?

Do you provide any study materials?

There is no formal certification for Shell Scripting. Although, post successful completion of the course, we certify you as having been professionally trained in scripting.

What happens if I miss a session?

All study materials will be available on line in your dashboard, the access to whih will be received post registration for the training session

What are the minimum system requirements to attend the course?

All the live sessions are recorded and available for later view. Learners can refer to recordings of a missed session at their convenience.

Is there an official support desk for technical guidance during the training program?

Personal computer or Laptop with web camera- Headphone with Mic- Minimum 1 Mbps broadband connection with 4 Mbps download speed.