About Linux

Is Linux so hard to use? Is it so hard to learn?
I think not so.
Basically Windows and Linux are same. But they are different obviously. The matters are given below which differentiates Linux from Windows:

• Windows is commercial and Linux is open Source
• Windows is mainly GUI oriented. Otherwise, Linux orientation is based on GUI and text-mode configuration. i.e. Linux provides programming interface as well as user interface too.
• Windows requires slightly more powerful hardware than does an equivalent Linux server. 
• Both Linux and Windows provide multiple choices for many server software categories, but those choices are different.
• Linux is more secure OS than windows
• Windows uses micro-kernel and Linux uses monolithic kernel
• Windows has less efficiency than Linux
• Windows is simple and straightforward to use than Linux

Feature of Linux:

• Open source

• Most Reliable computer ecosystems

• Less vulnerable on ransomware, malware, or viruses i.e. more secure system

• Easy to install
• Based on Unix standards
• Provides programming interface as well as user interface
• Multi-user system
• Abstract layer is used to govern different file systems
• Supports networked, device-oriented and virtual file systems
• Linux command line or terminal

Linux Command Line

• Linux command line is also referred to as the shell, terminal, console, prompt etc.
• Terminal is consist of input and output, a keyboard and a screen.
• In simple word, terminal is a software which takes the command from your keyboard and passes it to the OS.

There are different types shell or terminal. Generally, the default shell of Linux is bash shell.