Introduction🎉

Hey there, fellow DevOps adventurers!

Welcome to Day 3 of our epic 90 Days of DevOps journey! 🎉🎉Today's escapade took us into the wild and wacky realm of Linux commands! Buckle up because we're about to dive deep into the magical world of file management, permission handling, command history, and even some funky file comparisons! 🧙‍♂️📂🔐📜

Imagine yourself as a DevOps wizard, wielding the power of Linux commands like a boss! You've got the skill, and you're ready to conquer the command line! 💪💻

Task🎯

Solution

1. To view what's written in a file. 📄

cat <file-name>

It's like calling a curious cat to read the contents of a file for you! 😺

1. To change the access permissions of files. 🔒

    chmod <permission-command> <file/directory-name>
   

Think of it as playing "house" with your files, giving them different levels of security! You're the master of file access! 🏰

1. To check which commands you have run till now. ⏳

history

It's like having a personal time machine that shows you all the past commands you've ever used! 🚀

1. To remove a directory/ Folder. 🗑️

rmdir <directory-name> 
 #or 
rmdir -r <directory-name>

Imagine telling the computer to tidy up and delete an empty folder. It's like Marie Kondo for your files! ✨

1. To create a fruits.txt file and to view the content. 🍎📝

    touch fruits.txt  
    cat fruits.txt
   

You're creating a shopping list for fruits! First, you prepare the empty bag, and then you peek inside to see what you need to buy! 🛒

1. Add content in devops.txt (One in each line) - Apple, Mango, Banana, Cherry, Kiwi, Orange, Guava. 🍏🥭🍌🍒🥝🍊🍈

    echo -e "\Apple\nMango\nBanana\nCherry\nKiwi\nOrange\nGuava" > devops.txt
   

You're dictating the list of yummy fruits to your computer like a friendly fruit vendor! 🍏🥭🍌 Pick the best ones!

1. Show only the top three fruits from the file. 🍓🍇🍉

    sort devops.txt | head -n 3 devops.txt
   

It's like wearing a hat and just showing off the first three fruits from the list! Ta-da! 🎩

1. Show only the bottom three fruits from the file. 🍑🍍🥥

    sort devops.txt | tail -n 3 devops.txt
   

This time, we're showing off our fancy shoes (tail) and revealing the last three fruits! 👠

1. To create another file Colors.txt and to view the content. 🎨📝

    touch Colors.txt  
    cat Colors.txt
   

Now you're getting artistic! Creating a blank canvas for your colors and then peeking inside to see the beautiful hues! 🎨🖍️

1. Add content in Colors.txt (One in each line) - Red, Pink, White, Black, Blue, Orange, Purple, Grey. ❤️💗🤍🖤💙🧡💜🤎

    echo -e "\Red\nPink\nWhite\nBlack\nBlue\nOrange\nPurple\nGrey" > Colors.txt
   

It's like announcing the colors you want to paint with, loud and clear! 📢

1. To find the difference between fruits.txt and Colors.txt files. 🍎🔄🎨

    diff fruits.txt Colors.txt
   

You're becoming a detective now, spotting the variations between your fruit list and your color palette! 🔎🕵️‍♂️

There you have it, a delightful and emoji-filled guide to these commands! Have fun and happy computing! 🎉💻

Conclusion✨

Ah, Linux commands, are the backbone of the DevOps universe! 🌐💻 Mastering these magical tools is like unlocking the secrets to streamline processes, automate tasks, and troubleshoot like a pro! It's like having a superpower that makes us DevOps superheroes! 🦸‍♂️🦸‍♀️

So, let's keep practicing and playing with these commands! The more we tinker with them, the more they'll become our trusty sidekicks in this epic DevOps adventure! 💪

Remember, even the greatest cities weren't built overnight, and neither will our DevOps mastery! It's a journey, a continuous exploration of new skills and knowledge. But fear not, dear DevOps travelers, for together, we shall conquer all the challenges that come our way! 🏛️🗺️

Keep up the incredible work, and get ready for Day 4 of our thrilling 90 Days of DevOps journey! See you tomorrow, fellow DevOps adventurers! 🚀🌟