Basic & Advance Shell Scripting Syllabus

Basic Shell Scripting

Title: An Introduction to Shell Scripting: Harnessing the Power of the Command Line

Introduction

Shell scripting is a powerful and versatile tool that allows users to automate tasks, streamline workflows, and interact with the command line in a more efficient and productive way. In this blog, we’ll introduce you to the world of shell scripting, explaining what it is, why it’s important, and how you can get started on your journey to mastering this essential skill.

What is Shell Scripting?

At its core, shell scripting involves writing a series of commands in a script file that can be executed in a Unix-like shell. A shell is a command-line interface that provides users with direct access to the operating system’s services and functions. The most common shell on Unix-like systems is the Bourne Again Shell (Bash), but other shells like Zsh, Dash, or Fish are also in use.

Shell scripts are text files containing a sequence of shell commands that, when executed, automate various tasks. These tasks can range from simple file manipulations and data processing to complex system administration and automation.

Why is Shell Scripting Important?

Shell scripting offers several advantages and is essential for various reasons:

  1. Automation: Shell scripts allow you to automate repetitive and time-consuming tasks, saving valuable time and reducing the risk of errors.
  2. Customization: You can create scripts tailored to your specific needs and workflows, enhancing productivity and efficiency.
  3. System Administration: Shell scripts are widely used in system administration to manage and configure servers and infrastructure.
  4. Rapid Prototyping: Shell scripting provides a quick way to prototype and test concepts before implementing them in larger projects.
  5. Script Portability: Shell scripts can be easily shared and run on different Unix-like systems, ensuring compatibility across environments.

  1. Shell Basics
  2. Types of shells
  3. Shell functionality
  4. Shell Environment & Environment Variables
  5. Writing the first script
  6. Writing Shell Script and Executing a Basic Script
  7. Debugging Shell Script
  8. Making interactive scripts
  9. Variables (default variables)
    I.Special Variables
    II.Special Symbols
  10. Mathematical expressions
  11. Shell Scripting Conditional statements
  12. If-else-elif
  13. Test command
  14. Operators
  15. case –esac
  16. Loops
  17. While
  18. For
  19. Until
  20. Break & Continue
  21. Command-line arguments
  22. Positional parameters
  23. Set & shift
  24. IFS
  25. Functions & file manipulations
  26. Processing file line by line
  27. Functions
  28. Regular Expression & Filters
  29. What is a regular expression?
  30. Grep, cut, and sort commands
  31. Grep patterns
  32. SED & AWK
  33. Processes
  34. Concept of the process in Unix
  35. Background processes
  36. Scheduling processes -At, batch & Cron
  37. Misc
  38. Trapping signals
  39. String substitutions/manipulations

Advanced Shell Scripting

  1. Advanced Scripting  Techniques
  2. Providing  command line options to scripts
  3. Shell & subshells
  4. Exporting variables
  5. Arrays
  6. Remote shell execution
  7. Dialog boxes
  8. SQL with Shell
  9. Connecting to MySQL using shell
  10. Running SQL queries from a shell script
  11. Essential System Administration jobs (on AIX, Solaris & Linux)
  12. Managing disk space/file system
  13. Startup-Shutdown scripts
  14. Backup-cpio-tar
  15. Monitoring, health check
  16. Test  Framework  Development
  17. Design and concept of  test setup
  18. Sample Framework  design and demo
  19. Small Project