What is Linux?
The Linux Operating System is a type of operating system that is similar to Unix, and it is built upon the Linux Kernel. The Linux Kernel is like the brain of the operating system because it manages how the computer interacts with its hardware and resources. It makes sure everything works smoothly and efficiently. But the Linux Kernel alone is not enough to make a complete operating system. To create a full and functional system, the Linux Kernel is combined with a collection of software packages and utilities, which are together called Linux distributions. These distributions make the Linux Operating System ready for users to run their applications and perform tasks on their computers securely and effectively. Linux distributions come in different flavors, each tailored to suit the specific needs and preferences of users.
Difference Between Linux and Windows.
What is Kernel, Bootloader, and Shell?
Kernel :- Linux Kernel is a free, open-source, monolithic, modular, Unix-like operating system kernel. It is the main component of the Linux operating system (OS) and is the core interface between the computer’s hardware and its processes.
BootLoader :- Bootloader is a computer program that is responsible for booting a computer
Shell :- A shell is a special user program that provides an interface for the user to use operating system services. Shell accepts human-readable commands from users and converts them into something which the kernel can understand. It is a command language interpreter that executes commands read from input devices such as keyboards or from files. The shell gets started when the user logs in or starts the terminal.
Architecture of Linux.
Linux is an open-source UNIX-based operating system. The main component of the Linux operating system is Linux kernel. It is developed to provide low-cost or free operating system service to personal system users, which includes an X-window system, Emacs editor, IP/TCP GUI, etc.
Linux distribution:
Linux distribution is developed using a set of software based on compatibility with the Linux core kernel, using which Linux-based operations in different systems, such as personal systems, embedded systems, etc. There are around 600 distributions available.
Some Linux distributions are: MX Linux, Manjaro, Linux Mint, elementary, Ubuntu, Debian, Solus, Fedora, openSUSE, Deepin.
Components of Linux:
Like any operating system, Linux consists of software, computer programs, documentation, and hardware.
The main components of Linux operating system are: Application, Shell, Kernel, Hardware, Utilities.
Command-Line Interface (CLI):
The command-line interface is a powerful aspect of Linux, allowing users to interact with the system through the terminal. Commands are executed by typing instructions directly into the shell.
Why Linux Matters in DevOps?
Linux is the backbone of many DevOps practices, providing a stable and scalable environment for deploying applications, managing infrastructure, and automating processes.
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