Day 3 Task: Basic Linux Commands

Task: What is the linux command to

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

   cat filename

2. To change the access permissions of files.

   chmod 400 filename

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

   history

4. To remove a directory/ Folder.

   rmdir directory-name

   rm -rvf file-name

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

   • vim fruits.txt

   • cat fruits.txt

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

   

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

   head -3 devops.txt

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

   tail -3 devops.txt

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

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

    

    .

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

    diff fruits.txt Colors.txt