# #Day 03 of DevOps Challenge

### Linux Command

On Day 03, I learned about some more Linux command:

1. To view what's written in a file.- **<mark>cat filename</mark>**
    
2. To change the access permissions of files.- **<mark>chmod 777 filename</mark>**
    
3. To check which commands you have run till now.- **<mark>history</mark>**
    
4. To remove a directory/ Folder.- **<mark>rm filename</mark>**
    
5. To create a fruits.txt file and to view the content.- **<mark> vim fruits.txt</mark>** & **<mark> cat fruits.txt</mark>**
    
6. To Show only top three lines from the file.- **<mark>head -3 filename</mark>**
    
7. To Show only bottom three lines from the file.- **<mark>tail -3 filename</mark>**
    
8. To display the difference in file by comapring the file line by line.- **<mark>diff filename1 filename2</mark>**