Table of contents
- Introduction 😃
- 1. What is Shell? 🐚
- 2. What is Shell Scripting for DevOps? 🧙♂️💡
- 3. What is #!/bin/bash? 🐚🔍
- 4. Can we write #!/bin/sh as well? 🤔📝
- 5. Shell Script which prints the text "I will complete #90DaysOfDevOps challenge" 🎯📜
- 6. Shell Script to Take Input from Arguments and Print Variables 📨🔍
- 7. Shell Script with If-Else (e.g Comparing Two Numbers) 🔄🔀
- Conclusion 🎉🌟
Introduction 😃
In the world of creating and improving software, teamwork and smooth cooperation are the secret ingredients to success. That's where DevOps comes in! 🔧✨ In this blog, we'll explore the amazing world of DevOps, enhanced by the powerful tool called Shell Scripting! 💻🚀
1. What is Shell? 🐚
In the exciting realm of computer interfaces, the Shell is like a friendly tour guide! 🌈🌟 It's a way for us to talk to the computer using simple commands and scripts. 🗣️💻
2. What is Shell Scripting for DevOps? 🧙♂️💡
Before we delve into mystical script crafting, let's understand what Shell Scripting truly is. It's like having a magical spellbook for automating tasks on your computer! 📜🪄 These scripts are powerful tools that make repetitive tasks vanish, leaving you with more time to focus on innovation. 🎩🚀
3. What is #!/bin/bash? 🐚🔍
In the land of scripts, #!/bin/bash is like an invocation spell! 🧙♀️🎇 It tells the computer that the script should be interpreted and executed using the "bash" shell, which is one of the most popular and versatile shells. 🌟💻
4. Can we write #!/bin/sh as well? 🤔📝
Indeed, we can! #!/bin/sh is like an open invitation to a universal party! 🎉🌏 It specifies that the script should be executed using the system's default shell. This means the script can run on various systems without worrying about which specific shell is available. 🌈🌐
5. Shell Script which prints the text "I will complete #90DaysOfDevOps challenge" 🎯📜
The echo command is used to display the specified message on the terminal.
6. Shell Script to Take Input from Arguments and Print Variables 📨🔍
A) User input :
Output after taking the input:
B) Taking input from arguments:
Output after taking input from arguments:
7. Shell Script with If-Else (e.g Comparing Two Numbers) 🔄🔀
Here's an example of using an if-else statement in a shell script to compare two numbers:
User input :
Output after taking the input:
In this example, we have two variables num1 and num2 assigned with the values 4 and 5, respectively.
The if-elif-else construct compares the two numbers using the appropriate comparison operators and prints the corresponding message based on the result.
Conclusion 🎉🌟
Congratulations on embracing the magic of Shell Scripting in the DevOps world! 🎩💻 You've learned to create spells that automate tasks, save time, and make you a true DevOps sorcerer! 🧙♀️🌈 Embrace your newfound power and continue exploring the realm of DevOps with confidence! 🔧✨ May your journey be filled with excitement and success! 🚀🌟