Introduction
Welcome to Day 4 of our #90DaysOfDevOps journey! Today, we'll dive into the fascinating world of Shell Scripting - a powerful tool that automates tasks, streamlines workflows, and makes our systems super efficient! Let's embark on this magical adventure together! 🌟💡
Understanding Shell Scripting
Shell Scripting is like writing spells in a special language called a "script." These scripts work like magic, letting DevOps pros automate tasks, manage systems, and do amazing things with just a few lines of code! It's like a secret power we use to make our work easier and faster! 🧙♂️💻
Shebang - #!/bin/bash
The "#!/bin/bash" is like a magic word at the start of our script. It tells the system which shell (Bash) should use to understand our commands. Think of it as casting a spell to make sure our script runs smoothly! 🌐🧙♀️
Example: "I will complete #90DaysOfDevOps challenge"
Let's do some magic right away! With a simple spell (script), we'll make the computer say an encouraging message - "I will complete #90DaysOfDevOps challenge." Abracadabra! 💬🎉
Taking User Input and Using Arguments
Shell scripts can also talk to us and use special tricks! We can ask the user questions and store their answers in our script. It's like having a conversation with the computer! 🗣️💬
Additionally, we can give our script special powers to understand things we tell it when we run it. It's like having a secret code (arguments) that makes our script do different things based on what we say! ✨🔑
Example of If-Else in Shell Scripting
With Shell Scripting, we can make choices too! We can ask questions and do different things based on the answers. It's like a "magic if-else" - if something is true, we do this; otherwise, we do something else! 🤔✨
Conclusion
Yay! You've just mastered the magic of Shell Scripting for DevOps! Shell scripts are like spells that make our work easier and super cool! They help us automate tasks, talk to the computer, and make smart decisions. Keep practising your magic spells, and let's conquer Day 4 together! 🚀🧙♂️💻
Happy Learning..!!!
Reference
To develop deeper into the world of DevOps I highly recommend following Shubham Londhe on TrainWithShubham and Bhupinder Rajput on Technical Guftgu.