Ubuntu

What is Ubuntu

1.Ubuntu is a Debian based Linux operating system.
2.If you do install the distribution, you will have the option to perform a dual boot, or will be able to keep your current OS along with Ubuntu.
3.Ubuntu update is released every six months
4.The system requirements vary among Ubuntu products. For the Ubuntu desktop release 16.04 LTS, a PC with at least 2 GHz Dual-core processor, 2 GB of RAM and 25 GB of free disk space is recommended

Advantage of Ubuntu 

• Ubuntu is free
• Ubuntu is complete Customize
• Ubuntu is more secure  
• Ubuntu runs with out installing 
• Ubuntu is better suited in developer 
• Ubuntu is Command line 
• Ubuntu can be updated with out restarting 
• Ubuntu is open source 
• Ubuntu is support in windows tilling 
• Ubuntu is more Re secure Friendly 

Disadvantage of Ubuntu 

• Limited Functionality Due to Limited Applications
• Also Has Limited and Unimpressive Game Titles
• Problems About Software and Hardware Compatibility
• There Are Better Linux Operating System Alternatives
• Issues About Commercialization Versus Open Source

Ubuntu Free OS Download Internet:- https://ubuntu.com/download/desktop

Commands 

• ls:- list
• Cd:-Documents
• mkdir:-Folder create 
• Touch:-File Create
• Rm:-File remover
• rmdir:-Folder Remover 
• Clear:-Total Coding are going up
• cd<> double dod:- Back
• Tree:-Chart