Joining the #90DaysOfDevOps challenge 🚀 under the guidance of Shubham Londhe Sir, alongside the #TrainWithShubham community! 🌐✨

Day 3 TASK :

🐧Linux commands:

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

   Command:cat

   Syntax:cat rhythm.txt

   

   Explanation: This command displays the full contents of the specified file directly in the terminal window. To view the contents of a file, you can use the cat command

   2. To change the access permissions of files:

   Command:chmod

   Syntax:chmod [options] permissions filename

   

   Explanation: Modifies the read, write, and execute permissions for a file or directory. The chmod command is used to change the access permissions of files.

   3. To check which commands you have run till now:

   Command:history

   Syntax:history

   

   Explanation: Lists a chronological record of the commands executed in the current terminal session. To check the commands you have run so far, the history command is your go-to tool

   4. To remove a directory/Folder:

   Command:rmdir

   Syntax:rmdir directory_name or rm -rf directory_name

   

   Explanation: Deletes an empty directory. To remove a directory with its contents, usermdir directory_name or rm -rf directory_name (use with caution!). The rmdir or rm command can be used to remove a directory. Be cautious with rm as it can delete files and directories permanently.

   5. To create a fruits.txt file and to view the content:

   Commands:

   • touch fruits.txt (creates the file)

     

   • cat fruits.txt (views the content)

     

     Explanation: To create a new file, you can use the touch command.To view the content, you can use the cat command

   6. Add content in fruits.txt (One in each line) - Apple, Mango, Banana, Cherry, Kiwi, Orange, Guava:

   Command:echo -e "Apple\nMango\nBanana\nCherry\nKiwi\nOrange\nGuava" > fruits.txt

   

   7. To Show only the top three fruits from the file:

   Command:head devops.txt -n 3

   

   8. To Show only the bottom three fruits from the file:

   Command:tail devops.txt -n 2

   

   9. To create another file Colors.txt and to view the content:

   Commands:

   • touch Colors.txt (creates the file)

   • cat Colors.txt (views the content)

     

   10. Add content in Colors.txt (One in each line) - Red, Pink, White, Black, Blue, Orange, Purple, Grey:

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

   

   11. To find the difference between fruits.txt and Colors.txt file:

   Command:diff fruits.txt Colors.txt

   

   Explanation:

   • This command compares the contents offruits.txt with Colors.txt.

   • It outputs the differences between the files in a line-by-line format.

   Happy Learning :) 🚀🌟

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   Thank you for taking the time to read this blog. I hope you found valuable insights! If you enjoyed the content, please consider giving it a like, sharing it, and following for more insightful posts in the future. Your support means a lot! Looking forward to sharing more knowledge with you! 🚀

   🙌A special thanks to Shubham Londhe #TrainWithShubham and the DevOps community for organizing this fantastic initiative. Let's learn, grow, and make a difference through DevOps!

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   :)Happy Learning...

   Thank you for reading! 💚

   -RhythmDevOpsBlogs💝