Linux file system is little tricky and you can learn quickly by learning these tips.
The real use of top command in UNIX. You will know complete system information.
Scripting is very powerful in Linux operating systems and it is so common. I have given my first script that I have practised during my learning so that you can learn Script how to write and execute it quickly.
The popular four servers that came from traditional single server to present container. The DOCKER which is running on container concept and it is ruling IT world.