Day 3: Hands-on Linux

To view what's written in a file.

  cat <file_name>

To change the access permissions of files.

  chmod <permissions> <file_name>

To check which commands you have run till now.

  history

To remove a directory/ Folder.

  rmdir <directory_name>

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

  touch fruits.txt cat fruits.txt

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

To Show only the top three fruits from the file.

  head -3 devops.txt

To Show only the bottom three fruits from the file.

  tail -3 devops.txt

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

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

shown in the above image.

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

diff fruits.txt Colors.txt